Every legal claim is a bundle of economic rights: a probability-weighted entitlement to a future payment, backed by evidence and enforceable in court. Finance long ago learned to treat such bundles as assets. The law, after several centuries of hesitation, largely agrees. This article traces how claim ownership by parties other than the original holder became ordinary — in insurance, in bankruptcy, in intellectual property — examines where the doctrine stands today, and explains why, for a specific class of claimholder, transferring a claim to a dedicated owner is not a workaround but the economically and legally coherent structure.

I. The Market That Already Exists

Start with what happens every day, without controversy.

Every time an insurer pays a loss and pursues the responsible party, it is prosecuting an acquired claim — subrogation is nothing else, and it is centuries old. In Chapter 11, the buying and selling of claims against debtors is an institutional market that one analysis put at more than $25 billion in a single year of U.S. cases, excluding Lehman-related trading; scholars have described the emergence of that market as the most consequential development in bankruptcy practice since the modern Code. The broader distressed-debt market — instruments whose value is substantially a bet on legal process — has been estimated at several hundred billion dollars across hundreds of institutional investors. Patents, which are frequently valuable only as the right to sue infringers, are assigned and reassigned as a matter of course. And the U.S. Supreme Court settled the underlying instinct more than a century ago in the life-insurance context, holding in Grigsby v. Russell (1911) that a policy — a claim to a future payment if ever there was one — is property the holder may sell, with Justice Holmes reasoning that denying transferability would gut the asset’s value to the very person it was meant to protect.

The point is not that these markets are identical to the assignment of a commercial litigation claim. The point is that the premise — legal claims are property, and property can change hands — is not an innovation. It is the working assumption of modern finance and, increasingly, of modern law.

II. The Doctrine’s Long Retreat

The historical objection has a name and a history worth knowing, because opponents of claim transfers still invoke its vocabulary. Medieval English law prohibited “maintenance” (supporting another’s litigation) and “champerty” (doing so for a share of the proceeds) — doctrines aimed at feudal magnates who bought up disputes to harass rivals through corrupt courts. For centuries those doctrines made most choses in action non-assignable.

The retreat has been long and nearly complete. Courts of equity began enforcing assignments centuries ago; by the nineteenth century, American courts routinely gave assignees full rights of suit. In Sprint Communications Co. v. APCC Services (2008), the U.S. Supreme Court canvassed this history and held that even an assignee for collection — one obligated to remit proceeds back to the assignor — has Article III standing, resting the holding on the observation that courts have entertained assignee suits, in essentially unbroken practice, since the eighteenth century. California abolished the common-law framework by statute long ago: Civil Code section 954 makes things in action arising out of obligation or violation of property rights freely transferable, and California courts have repeatedly confirmed that the state does not recognize champerty as a defense.

III. The Modern Map — and Its One Serious Exception

Candor requires the map’s rough edges. Assignability is a matter of state law, and the states are not uniform.

California and Delaware are hospitable terrain for the assignment of commercial claims — contract claims, claims sounding in injury to property or economic interests, fiduciary claims held by the transferring holder. New York is the meaningful exception: Judiciary Law section 489 preserves a champerty prohibition where a claim is acquired with the primary purpose and intent of bringing suit on it, and New York’s highest court enforced that prohibition against a note-acquisition vehicle in Justinian Capital v. WestLB (2016), while the statute itself provides a safe harbor for purchases above a $500,000 threshold. Separately, federal law scrutinizes assignments made collusively to manufacture diversity jurisdiction. None of this makes claim ownership illegitimate; it makes structure and venue matter, which is precisely why claim vehicles should be built by experienced counsel rather than downloaded from a form book. Serious participants in this market treat those doctrines as engineering constraints, not embarrassments.

IV. Why Ownership, Rather Than Financing, Solves the Alignment Problem

Given that a claim can be owned, the question becomes why it should be — why a holder would place a claim into a dedicated vehicle rather than simply borrow against it.

The answer is the oldest one in economics: assets perform for their residual claimants. A litigation funder holds a contract entitling it to a slice of someone else’s asset, which it may not control; ethical rules governing counsel’s independence and the client’s authority make that passivity mandatory, not merely customary. An owner is different in kind. When a claim sits in a dedicated vehicle whose manager bears every dollar of cost and whose return exists only if the claim succeeds, the party directing the work, the party funding the work, and the party owning the outcome are the same party. Nothing needs to be aligned by contract, because nothing was ever separated.

The features that make such a structure economically coherent are the same features that make it legally durable. A complete assignment, documented and disclosed to the court, answers the real-party-in-interest question rather than dodging it. An original holder who remains a member of the vehicle — retaining, in our structures, the majority of the economics — demonstrates that the transfer allocated risk and labor rather than merely renting a plaintiff. And a manager whose capital is genuinely and irreversibly at risk is the opposite of the officious intermeddler the old doctrines feared. The medieval objection was to strangers stirring up litigation for sport. A vehicle jointly owned by the wronged party and the party funding the wrong’s redress is about as far from that figure as the law of property allows.

V. What Cannot Be Owned — and What We Do Instead

Honesty about limits is part of the discipline. Personal-injury claims are generally not assignable, and most states bar the assignment of legal-malpractice claims, on the theory that such claims are personal to the injured party. Certain statutory rights are personal by design: awards under the SEC and IRS whistleblower programs belong to the natural-person whistleblower and cannot be transferred, which is why our whistleblower work proceeds through funded partnership rather than acquisition. And some contracts contain anti-assignment provisions whose enforceability requires case-by-case analysis. A claim’s transferability is the first underwriting question, not an afterthought — in our own screening framework, it is the trait we describe as whether a claim “can travel.”

VI. The Last Unprofessionalized Asset

Receivables became factoring. Mortgages became securities. Insurance obligations became a reinsurance market. Bankruptcy claims became a trading desk. In each case, an economic right once welded to its original holder was, over decades and against initial resistance, placed in the hands of owners built to realize its value — and in each case the original holders were the beneficiaries, because a right you can transfer is worth more than a right you can only hold.

Substantial commercial litigation claims held by individuals and closely held companies are, arguably, the last major category of valuable economic rights still routinely stranded with holders structurally unable to realize them. The doctrine permits their transfer. The precedents are centuries deep. What has been missing is not legal authority but an owner of the right kind: one that unifies capital, control, and consequence in a single entity — and leaves the majority of the outcome with the person the claim was always about.


Sources: Grigsby v. Russell, 222 U.S. 149 (1911); Sprint Communications Co. v. APCC Services, Inc., 554 U.S. 269 (2008); Cal. Civ. Code § 954; N.Y. Judiciary Law § 489 and Justinian Capital SPC v. WestLB AG, 28 N.Y.3d 160 (2016); 28 U.S.C. § 1359; bankruptcy claims-trading market data as reported by DailyDAC/TrollerBK (2018); distressed-debt market estimates attributed to Edward Altman (NYU Stern); Adam J. Levitin, “Bankruptcy Markets: Making Sense of Claims Trading” (2010).

Standing Ventures is not a law firm and does not provide legal advice. This article describes general legal history and doctrine for informational purposes only; whether any particular claim is assignable, and under what structure, requires advice from qualified counsel.