BLACKBURNE-RIGSBY, Associate Judge:
We granted appelleesâ petition for rehearing en banc to consider whether we should continue to follow the rule of Sulli*61van v. Flynn, 20 D.C. (9 Mackey) 396 (1892), that the contracts of mentally incapacitated persons are inherently void, or should instead join the majority of jurisdictions in deeming such contracts only voidable.
The background is as follows. Appellantâs predecessor-in-interest, 718 Associates,1 appealed a decision by the trial court determining that it was not entitled to a non-redeemable judgment for possession of property located at 718 Marietta Place, N.W., Washington, D.C. (the âPropertyâ). Appellees Bryant and Sheillia Banks (the âBanksesâ) contend that they are legally entitled to continue living in the Property by virtue of a lease entered into with the previous owner of the Property, Ms. Patricia Speleos. At trial, 718 Associates argued that appelleesâ lease was void because Ms. Speleos was mentally incapacitated when she signed the lease. The trial court upheld the validity of the lease, finding that although Ms. Speleos was mentally incapacitated when she entered into the lease agreement, her incapacity rendered the lease voidable at her election, rather than inherently void. The trial court found that the lease had not been disaffirmed by Ms. Speleos or her representatives and therefore did not award possession of the Property to 718 Associates. 718 Associates appealed, and a three-judge division of this court reversed the trial courtâs decision, holding that Sullivan controlled and the lease was inherently void.2 718 Assocs. v. Banks, 21 A.3d 977, 984 (D.C.), rehâg en banc granted, opinion vacated sub nom. 718 Assocs. Tr. 718 NW Trust v. Banks, 36 A.3d 826 (D.C.2011). We conclude that the voidable standard better comports with modern contract law and modern understandings of mental illness and therefore overrule Sullivan and adopt the majority approach that such contracts are voidable, rather than inherently void.
I. Background
The Bankses entered into a lease agreement regarding the Property at issue in this case with Ms. Speleos in March 2001. Pursuant to that lease, appellees were obligated to pay $500 per month in rent and were given the exclusive option to purchase the Property at any time for $50,000. In July 1997, 718 Associates purchased a tax sale certificate to the Property for $2,103 and was subsequently issued a tax deed in August 2001. See D.C.Code § 47-1304 (1997 Supp.) (providing that when a *62property is not redeemed by the owner following the issuance of a tax sale certificate, a deed shall be given to the tax sale purchaser).
In November 2001, as part of a separate proceeding initiated by Adult Protective Services, Superior Court Judge Kaye K. Christian found Ms. Speleos, who was then eighty-four years old, to be mentally incapacitated as defined by D.C.Code § 21-2011(11) (2001).3 Pursuant to the finding of incapacity, Judge Christian appointed Stephanie Bradley as conservator of Ms. Speleosâs estate and Ms. Speleosâs nieces as guardians of Ms. Speleos. See D.C.Code §§ 21-2051, -2044 (2001) (appointment of conservators and guardians, respectively). A hearing was later held to determine the status of seven real estate transactions Ms. Speleos had entered into in March 2001, prior to her adjudication of incapacity. Ms. Bradley alleged that Ms. Speleos was already incapacitated at the time of the transactions, in which she purportedly transferred seven properties with tax-assessed values of over half a million dollars for only $41,000 in recited consideration. Judge Christian voided the transactions, but did not rule on the validity of the Banksesâ lease, which was also entered into prior to Ms. Speleosâs adjudication of incapacity. Instead, Judge Christian noted that another hearing would need to be held to address that lease. However, that additional hearing was never held.
On August 4, 2003, Judge Hiram E. Puig-Lugo found, based on the testimony of Ms. Speleosâs conservator and guardians, that Ms. Speleos was mentally ill and was likely to injure herself. See D.C.Code § 21-545(b)(2) (2001). For that reason, Ms. Speleos was committed indefinitely to the District of Columbia Department of Mental Health for outpatient treatment. On August 5, 2003, 718 Associates filed suit against Ms. Speleosâs estate to quiet title to the Property, claiming that their tax deed divested all interest and title of the Estate and vested good title to the Property in 718 Associates. See D.C.Code § 47-1304 (2001). While the suit to quiet title was pending, Ms. Speleos passed away, and her sister, Ann E. Pizzulo, became Personal Representative of the Estate. The suit to quiet title was resolved in October 2006, when 718 Associates and the Estate entered into a settlement agreement, which resulted in 718 Associates obtaining title to the Property. Pursuant to that settlement agreement, the Estate provided an affidavit attesting that there were no valid leases or permissive tenants on the Property.4
In April 2008, 718 Associates filed the present action seeking a non-redeemable judgment for possession of the Property *63against the Bankses. The Bankses claimed that they were entitled to remain tenants when 718 Associates obtained title to the Property because they had a valid lease with the Propertyâs former owner, Ms. Speleos. 718 Associates challenged the validity of that lease, claiming that Ms. Speleos lacked capacity at the time that she entered into the lease transaction with the Bankses and, as a result, the lease was void.5 The trial court, Judge Stephanie Duncan-Peters, found that Ms. Speleos was mentally incompetent when she entered into the lease agreement with appel-lees.6 The trial court concluded, however, that the lease was voidable, rather than void. Citing Sullivan v. Flynn, 20 D.C. (9 Mackey) 396 (1892), the trial court recognized that â[historically, a conveyance or contract by an insane or non compos men-tis individual was declared void, and not merely voidable.â The trial court observed that âthe District of Columbia has not considered this particular issue,â but did not discuss whether Sullivan remained binding precedent in the District of Columbia. The trial judge then examined what she described as the âmodern viewâ that such a transaction is voidable, citing to cases from other jurisdictions7 and discussing the public interest in protecting incapacitated personsâ personal and property rights. After concluding that contracts entered into by mentally incapacitated persons are voidable, rather than void, the trial court found that there was âno ratification or disaffirmance by Ms. Spel-eos or an authorized representative on her behalf....â8 The trial court concluded by observing that â[t]he public policy considerations that would give the [cjourt power to void the lease agreement, namely protection of the incompetent party, are not applicable to [718 Associates, a subsequent purchaser].â
*64On appeal to the division, although 718 Associates âlargely accede[d] to the trial courtâs determination that the lease was voidable and not void,â they did âask [the division] to find âthat the lease agreement is void in accordance withâ Sullivan, supra, 20 D.C. (9 Mackey) at 401 (1892) (holding that âthe deed of an insane person is void, and therefore cannot be ratified by acts in pais â).â9 718 Assocs., supra, 21 A.3d at 981 n. 9. The division concluded that it was constrained to apply Sullivan because Sullivan remained binding precedent in the District of Columbia and therefore could only be overruled by this court sitting en banc.10 718 Assocs., supra, 21 A.3d at 984 (citing M.A.P., supra note 2, 285 A.2d at 312).
II. Discussion
We begin our discussion by outlining the relevant legal principles governing the contracts of mentally incapacitated persons. We then explain our reasons for overruling Sullivan and adopting the voidable rule, as stated in the Restatement (Second) of Contracts, as the law of the District of Columbia.
A. Legal Background
We granted rehearing en banc to consider whether the rule from Sullivan, that contracts entered into by mentally incapacitated persons are inherently void, should continue to be followed in the District of Columbia, or if we should join a majority of jurisdictions and hold that such contracts are voidable. We first address the applicable standard of review and define the void and voidable rules concerning the contracts of mentally incapacitated persons.
1. Standard of Review
Because neither this court sitting en banc nor the D.C. Circuit (prior to 1971) overturned or announced a departure from Sullivan, it remains the law in the District of Columbia. This court sitting en banc may overrule our predecessor courtsâ decisions, including common law decisions. See, e.g., Davis v. Moore, 772 A.2d 204, 234 (D.C.2001) (en banc) (Ruiz, J., concurring in part and dissenting in part). â[I]n common law cases our task is to carefully consider our own precedents, weigh rulings from other jurisdictions for their persuasive authority, and, guided by judicial doctrines such as stare decisis and the uniquely judicial means of case-by-case adjudication, declare the common law of the District of Columbia.â11 Id. âThe doc*65trine of stare decisis is of course âessential to the respect accorded to the judgments of the [cjourt and to the stability of the law,â but it does not compel us to follow a past decision when its rationale no longer withstands âcareful analysis.â â Arizona v. Gant, 556 U.S. 332, 348, 129 S.Ct. 1710, 173 L.Ed.2d 485 (2009) (quoting Lawrence v. Texas, 539 U.S. 558, 577, 123 S.Ct. 2472, 156 L.Ed.2d 508 (2003)). Furthermore, the doctrine of stare decisis ââdoes not irreversibly require that we follow without deviation earlier pronouncements of law which are unsuited to modern experience and which no longer adequately serve the interests of justice.â â Carl v. Childrenâs Hosp., 702 A.2d 159, 178-79 (D.C.1997) (Schwelb, J., concurring) (quoting Beaulieu v. Beaulieu, 265 A.2d 610, 613 (Me.1970)). Before discussing why Sullivan should be overruled, we briefly explain the void and voidable rules as they relate to the contracts of mentally incapacitated persons.
2. Void Rule
Sullivan held âthat the deed of an insane person is void, and therefore cannot be ratified by acts in pais.â12 20 D.C. (9 Mackey) at 401. Although Sullivan did not go into such detail, it is generally understood that â[a] void bargain is not a contract at all;â a void âcontractâ cannot be ratified and therefore does not bind the parties. RichaRD A. LORD, 5 Williston on Contracts § 10:2, at 278-79 (4th ed. 2009). Because the parties were never bound, the party with capacity can repudiate an agreement even though the incapacitated party has already performed. Id. A minority of jurisdictions continue to follow the rule that contracts entered into by mentally incapacitated persons are void.13
3. Voidable Rule
A majority of jurisdictions follow the rule that contracts entered into by mentally incapacitated persons are voida*66ble, rather than inherently void. Under that rule, the contractual act of a person later found mentally incapacitated, rather than adjudicated incapacitated or under a guardianship at the time of the contract,14 is not inherently void but at most voidable at the instance of the mentally incapacitated party, and then only if avoidance is equitable.15 A voidable contract is presumed valid and legally binding,16 subject to possible avoidance by the mentally incapacitated party,17 who must manifest an election to do so.18 The voidable rule is set forth in the Restatement as follows:
(1) A person incurs only voidable contractual duties by entering into a trans*67action if by reason of mental illness or defect
(a) he is unable to understand in a reasonable manner the nature and consequences of the transaction, or
(b) he is unable to act in a reasonable manner in relation to the transaction and the other party has reason to know of his condition.
(2) Where the contract is made on fair terms and the other party is without knowledge of the mental illness or defect, the power of avoidance under Subsection (1) terminates to the extent that the contract has been so performed in whole or in part or the circumstances have so changed that avoidance would be unjust. In such a case a court may grant relief as justice requires.
Restatement (Second) of Contracts § 15 (1981). In sum, a voidable contract â unlike a void contract, which has no legal effect â binds both parties unless disaf-firmed or avoided by the incapacitated party. Absent fraud or knowledge of the asserted incapacity by the other contracting party, the power of avoidance is subject to limitation based on equitable principles.19 The power of avoidance also terminates if the incapacitated party, upon regaining capacity, affirms or ratifies the contract.20 Having explained the relevant legal principles, we proceed to consider whether Sullivan should be overruled and the voidable rule adopted in its place.
B. Overruling Sullivan v. Flynn
In considering whether the precedent established in Sullivan should be overruled, we examine whether Sullivanâs rationale still withstands careful analysis. Concluding that it does not, we first explain why the outcome in Sullivan was not compelled by the holding in Dexter v. Hall, 82 U.S. (15 Wall.) 9, 21 L.Ed. 78 (1872). Next, we examine the validity of the rationales supporting the void rule: that a mentally incapacitated person is not capable of forming a contract and that the void rule best protects the incapacitated party. Finally, we conclude that the voidable rule better balances the competing interests of protecting the incapacitated party while ensuring the security of transactions.
The court in Sullivan reasoned that it was bound by the United States Supreme Courtâs decision in Dexter to hold that the deed of an insane person is void. Sullivan, supra, 20 D.C. (9 Mackey) at 401-02. The only issue before the Court in Dexter was âwhether a power of attorney executed by a lunatic is void, or whether it is only voidable.â 82 U.S. (15 Wall.) at 20 (emphasis added). Analogizing to contracts involving infants, the Court held that a power of attorney granted by a âlunaticâ was void. Id. at 25-26. At the time Dexter and Sullivan were decided, it was common for courts to distinguish powers of attorney from contracts. See 5 Williston on Contracts § 9:5, at 37-44 (observing that although the general rule is that an infantâs contract is voidable rather than void, â[a]t one time, certain contracts made by an infant were held void, rather than voidableâ and âit has often been asserted and sometimes decided that an infantâs power of attorney or agreement to make another his agent is voidâ (citing, inter alia, Dexter, supra, 82 U.S. (15 Wall.) 9). However, the distinction between powers of attorney and contracts is no longer widely accepted. See 5 Williston on Con*68tracts § 9:5, at 46-47 (â[T]he better view has been to treat the creation of an agency by a minor like other agreements made by infants, as merely voidable.... â (citing, inter alia, Restatement (Second) of Agency § 20 (1958) (âA person who has capacity to affect his legal relations by the giving of consent has capacity to authorize an agent to act for him with the same effect as if he were to act in person.â)))); 12 Williston on Contracts § 35:1, at 202 (4th ed. 2012) (âAn agency contract is formed according to the same rules that are applicable to any other contract; an agency is created in much the same manner as a contract is made, in that the agency results from an agreement between the principal and the agent to serve in that capacity.â); see also Restatement (Second) of Agency § 32 (1958) (âExcept to the extent that the fiduciary relation between principal and agent requires special rules, the rules for the interpretation of contracts apply to the interpretation of authorityâ). In the years following Dexter, there was disagreement over whether it should be interpreted narrowly, to apply only to powers of attorney, or broadly to encompass other contracts.21 That the Supreme Court did not intend to establish a sweeping rule that all contracts of mentally incapacitated persons are void is demonstrated by the Courtâs decision in Luhrs v. Hancock, 181 U.S. 567, 21 S.Ct. 726, 45 L.Ed. 1005 (1901), where the Court observed, without even addressing Dexter, that â[t]he deed of an insane person is not absolutely void; it is only voidable; that is, it may be confirmed or set aside.â 181 U.S. at 574, 21 S.Ct. 726 (citation omitted). However, Luhrs is not binding on this court and therefore does not replace Sullivan as the law of the District of Columbia.22
*69The court in Sullivan acknowledged that contracts generally, as opposed to powers of attorney specifically, were not at issue in Dexter; nonetheless, the Sullivan court felt âbound to recognize, in so full and careful a discussion, a deliberate intention of the [Dexter ] court to establish a rule.â23 20 D.C. (9 Mackey) at 402. Although Dexter did not actually hold that all contracts entered into by mentally incapacitated persons are void, and therefore did not compel the Sullivan court to hold such, Dexter did use some broad language (dictum) to explain the rationales used to support the void rule.
Next, we examine the rationales commonly used to support the void rule, as explained by the Court in Dexter: 1) that a mentally incapacitated person cannot enter into a valid contract because to do so ârequires the assent of two mindsâ and a mentally incapacitated person âhas nothing which the law recognizes as a mind;â and 2) that a mentally incapacitated person, unlike an infant, will never gain the mental capacity necessary to avoid a contract and therefore âhas no protection if his contract is only voidable.â Dexter, supra, 82 U.S. (15 Wall.) at 20-21.24 As we discuss below, these rationales no longer comport with *70modern contract law and modern understandings of mental illness.
1. Contract Formation
Implicit in the holdings of both Dexter and Sullivan is the premise that formation of a contract requires the mental assent of the parties involved, or a âmeeting of the minds.â25 Under this subjective theory of contract formation, it would seem logical to conclude that if one of the parties lacked a sufficient âmindâ there could be no such mental assent or âmeeting of the mindsâ and therefore no contract. Weihofen, supra note 24, at 230. The question of whether a partyâs actual mental assent was necessary to the formation of a contract was the subject of a âsignificant doctrinal struggle in the development of contract lawâ between subjective theorists, who argued that a âmeeting of the mindsâ was necessary to contract formation, and objective theorists, who took the view that â[t]he expression of mutual assent, and not the assent itself, was the essential element in the formation of a contract.â Newman v. Schiff, 778 F.2d 460, 464 (8th Cir.1985) (emphasis added). âBy the end of the nineteenth century, the objective theory had become ascendant and courts universally accept it today.â' 1 E. Allan Farns-worth, Farnsworth on Contracts § 3.6, at 210 (3d ed. 2004); see also Hart v. Vermont Inv. Ltd. Pâship, 667 A.2d 578, 582 (D.C.1995) (observing that the District of Columbia follows the objective law of contracts) (citation omitted). The basis for the void rule â that a mentally incapacitated person has no âmindâ and is incapable of mental assent â âhas given way to ... the doctrine that contractual obligation depends on manifestation of assent rather than on mental assent [or meeting of the minds].â Restatement (Second) of Contracts § 15 cmt. a (emphasis added).
To continue to adhere to the Courtâs rationale in Dexter, and by extension Sullivan, one also has to accept the premise that âa lunatic, or a person non compos mentis, has nothing which the law recognizes as a mind....â26 82 U.S. (15 Wall.) at 20. The notion that a person either does or does not have a âmindâ has given way to a more nuanced understanding of mental capacity.27 Courts have recognized that a person who is declared incapacitated *71âmay be subject to varying degrees of infirmity or mental illness, not all equally incapacitating.â 5 Williston on Contracts § 10.3, at 296; see also Cundick v. Broadbent, 383 F.2d 157, 160 (10th Cir.1967) (recognizing âdifferent degrees of mental competencyâ when addressing whether a contract could be voided for lack of capacity). Furthermore, a person may have some capacity to contract and its existence in a specific case may depend on the nature of the particular transaction at issue.28 Thus, the first rationale supporting the void rule â that a mentally incapacitated person âhas nothing which the law recognizes as a mindâ and therefore cannot form a contract â no longer withstands careful analysis in light of changes in contract law and evolving understanding of the complexities of mental illness.
2. âProtectionâ of the Party with a Mental Illness or Defect
The other rationale relied on by Dexter and incorporated in Sullivan is that a mentally incapacitated person, unlike an infant, will never regain the mental capacity necessary to avoid a contract and therefore âhas no protection if his contract is only voidable.â Dexter, supra, 82 U.S. at 20-21. This rationale is based upon an outdated understanding of mental illness and of what it means to âprotectâ mentally incapacitated persons.
At the time Dexter and Sullivan were decided, âidiocyâ and âlunacyâ were primarily understood to be permanent conditions.29 Therefore, the view that a mentally incapacitated person would never gain the mental capacity necessary to avoid a contract made some sense, although it overlooked the fact that the contract could also be avoided by a guardian or, after death, by a personal representative. See Restatement (Second) of Contracts § 15 cmt. d. Evolving understanding of mental illness and advances in medicine have shown that mental capacity can vary over *72time and is susceptible to significant improvement with treatment. See, e.g., Trepanier v. Bankers Life & Cas. Co., 167 Vt. 590, 706 A.2d 943, 944 (1997) (recognizing that certain types of incapacity are only temporary); Street v. Street, 211 P.3d 495, 499 (Wyo.2009) (âMental incapacity is not always permanent and a person may have lucid moments or intervals when that person possesses the necessary capacity to convey property.â); cf. Wallace v. United States, 936 A.2d 757, 769 (D.C.2007) (recognizing that a defendant may regain competence to stand trial). Therefore, having the choice of whether to follow through on a contract or avoid it can be very beneficial to a person who entered into the contract during a period of incapacity. See, e.g., Blinn v. Schwarz, 177 N.Y. 252, 69 N.E. 542, 545 (1904) (âIf the deed or contract is void, it binds neither party, and neither can derive any benefit therefrom; but, if voidable, the lunatic, upon recovering his reason, can hold onto the bargain if it is good, and let go if it is bad.â).
Dexter, upon which Sullivan was predicated, relies on an outdated understanding of what it means to âprotectâ a person with a mental illness or defect. Whereas people with mental illnesses were once stigmatized and segregated from the rest of society as a common form of âtreatment,â 30 modern statutes focus on protecting the civil and legal rights of people with mental illnesses and on encouraging participation in society. The policy of the District of Columbia is that residents with intellectual disabilities âshall have all the civil and legal rights enjoyed by all other citizens.â D.C.Code § 7-1301.02(a)(l) (2012 Supp.).31 For example, commitment to a residential facility of the Department of Health is permitted only when it is âthe least restrictive alternative consistent with the best interests of the person and the public.â D.C.Code § 21-545(b)(2) (2004 Supp.). Consistent with that policy, the voidable rule better âprotectsâ mentally incapacitated persons by facilitating meaningful participation in society. If the contracts of mentally incapacitated persons are void, rather than voidable, their legal âprotectionâ is the opposite of what it should be â â[i]t would be a handcuff instead of a shield.â Breckenridgeâs Heirs v. Ormsby, 24 Ky. (1 J.J. Marsh.) 236, 239 (1829). Similarly, by limiting the ability to disaffirm the contract to the mentally incapacitated party or her representative, the voidable rule protects against cases in *73which the other contracting party seeks to take advantage of an individualâs mental incapacity to avoid an otherwise fair and enforceable contract.32 If the contracts of a mentally incapacitated person are treated as void, the competent party to the contract would not need to perform even if the incapacitated party is ready to, or already has, performed the bargain. 5 Wil-liston on Contracts § 10.2, at 279.
Determining how to treat the contracts of mentally incapacitated persons requires the reconciliation of two conflicting policies: âthe protection of justifiable expectations and of the security of transactions, and the protection of persons unable to protect themselves against imposition.â Restatement (Second) of Contracts § 15 cmt. a. We have already discussed how the voidable rule better serves the second policy. The voidable rule also better serves the first policy of creating greater certainty for real property and other commercial transactions. Under the Sullivan rule, because a mentally incapacitated personâs contract is inherently void, the competent contracting party and others with rights dependent on that party cannot obtain the benefit of their bargain, regardless of the inequities (although he or she may still have some remedy based on a quasi-contract theory). See, e.g., Nevin v. Hoffman, 431 F.2d 43, 47 (10th Cir.1970) (â[I]f a deed is absolutely void, a subsequent bona fide purchaser obtains nothing despite his innocence.â); Metro. Life Ins. Co. v. Bramlett, 224 Ala. 473, 140 So. 752, 754 (1932) (explaining that because the contracts âof an insane personâ are inherently void, âone who contracts with an insane person takes nothing, though ignorant of his insanity, and though he paid value, and his contract is valid for no purposeâ). The Restatement rule, by contrast, instructs a court to âgrant relief as justice requires.â Restatement (Second) of Contracts § 15(2). Under this rule, a contract might be enforced despite one partyâs incapacity where the other party had no reason to know of the incapacity and has substantially performed, cannot recover his or her consideration, or would otherwise suffer hardship. See Restatement (Second) of Contracts § 15 cmt. f & illustrations thereto (discussing situations in which avoidance would be inequitable).
Because we conclude that the void rule relies on an outdated theory of contract formation and outdated understandings of mental illness, we overrule the holding of Sullivan v. Flynn, 20 D.C. (9 Mackey) 396 (1892), that contracts entered into by mentally incapacitated persons are inherently void. In its place, we adopt the voidable rule as set forth in the Restatement (Second) of Contracts § 15, which better balances the competing interests of ensuring the security of transactions and enabling mentally incapacitated persons to participate in society, while protecting them from unfair imposition.
III. Application of the Voidable Rule to This Case
In the instant case, Ms. Speleos was found to have been incapacitated at the time she entered the lease with appellees.33 *74Therefore, the contract was voidable at the election of Ms. Speleos or her representative unless avoidance of the contract would be unjust. See Restatement (Second) of Contracts § 15 cmt. f (âIf the contract is made on fair terms and the other party has no reason to know of the incompetency, performance in whole or in part may so change the situation that the parties cannot be restored to their previous positions or may otherwise render avoidance inequitable. The contract then ceases to be voidable.â).34 Here, the trial court upheld the lease based on its determination that the lease was voidable and its finding that Ms. Speleos or her representatives did not effectively avoid or disaffirm the lease. Because the division was bound by the Sullivan rule deeming contracts entered into by mentally incapacitated persons void, the division did not reach 718 Associatesâ arguments challenging the finding that the contract had not been disaf-firmed.35 Now, as an en banc court we overrule Sullivan and join a majority of jurisdictions in holding that contracts entered into by mentally incapacitated persons are voidable, rather than inherently void. As a result, we remand to the division to consider whether the trial court erred in determining that the lease between Ms. Speleos and appellees was never disaffirmed.36
So ordered.
. While this appeal was pending before a three-judge division of this court, 718 Associates sold the Property and assigned all rights in the Property to Ricardo Hernandez, the current appellant. While 718 Associatesâ petition for rehearing en banc was pending, 718 Associates submitted a motion for leave to amend the caption to substitute parties, which we granted. See Flack v. Laster, 417 A.2d 393, 400 (D.C.1980) ("Once property or rights have been assigned, the assignee stands in the shoes of the assignor and can sue in his [or her] own name to enforce the rights assigned.â (citations and internal quotation marks omitted)).
. As the three-judge division of this court concluded, Sullivan v. Flynn, 20 D.C. (9 Mackey) 396 (1892), remained binding precedent in the District of Columbia. Sullivan was decided by the Supreme Court of the District of Columbia sitting in General Term, which is the predecessor court to the United States Court of Appeals for the District of Columbia Circuit ("D.C. Circuitâ). See John R. Thompson Co. v. District of Columbia, 92 U.S.App.D.C. 34, 36, 203 F.2d 579, 581 (1953) (recognizing the Supreme Court of the District of Columbia in General Term as its predecessor), rev'd on other grounds, 346 U.S. 100, 73 S.Ct. 1007, 97 L.Ed. 1480 (1953). Decisions of the D.C. Circuit rendered prior to February 1, 1971, as well as the decisions of this court, "constitute the case law of the District of Columbia" and can be overruled only by this court en banc. M.A.P. v. Ryan, 285 A.2d 310, 312 (D.C.1971).
. D.C.Code § 21-2011(11) defines an "[ÂĄIncapacitated individualâ as:
[A]n adult whose ability to receive and evaluate information effectively or to communicate decisions is impaired to such an extent that he or she lacks the capacity to manage all or some of his or her financial resources or to meet all or some essential requirements for his or her physical health, safety, habilitation, or therapeutic needs without court-ordered assistance or the appointment of a guardian or conservator.
. The affidavit was prepared by an attorney and signed by the Personal Representative of the Estate. The attorney, who also represented the Estate in the settlement agreement negotiations, later testified that she paid a brief visit to the Property and saw a broken-down vehicle in the backyard, broken top-floor windows, and overgrown grass. She did not attempt to knock on the door or deliver written notice to determine whether the Property was occupied. Although at this point Ms. Bradley, the conservator of the Estate, was aware of the Banksesâ lease, the attorney representing the Estate testified that she was not aware of the Banksesâ lease or occupancy of the Property.
. 718 Associates also claimed that Ms. Spel-eosâs signature on the lease was forged. The trial court found that Ms. Speleos's signature was not forged, and 718 Associates did not challenge that finding on appeal. In addition, 718 Associates argued that Ms. Speleos lac