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Law firm

business entity formed by one or more lawyers to engage in the practice of law

Layered newspapers, civic records and oral-history reels arranged as chronological evidence
History and societyInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 19, 2026
Entity authorityQ613142
Source-derived summary

A law firm is a business entity formed by one or more lawyers to engage in the practice of law. The primary service rendered by a law firm is to advise clients (individuals or corporations) about their legal rights and responsibilities, and to represent clients in civil or criminal cases, business transactions, and other matters in which legal advice and other assistance are sought.

Arrangements

Law firms are organized in a variety of ways, depending on the jurisdiction in which the firm practices. Common arrangements include:

Sole proprietorship, in which the attorney is the law firm and is responsible for all profit, loss and liability;

General partnership, in which all the attorneys who are members of the firm share ownership, profits and liabilities;

Professional corporations, which issue stock to the attorneys in a fashion similar to that of a business corporation;

Limited liability company, in which the attorney-owners are called "members" but are not directly liable to third party creditors of the law firm (prohibited as against public policy in many jurisdictions but allowed in others in the form of a "Professional Limited Liability Company" or "PLLC");

Professional association, which operates similarly to a professional corporation or a limited liability company;

Limited liability partnership (LLP), in which the attorney-owners are partners with one another, but no partner is liable to any creditor of the law firm nor is any partner liable for any negligence on the part of any other partner. The LLP is taxed as a partnership while enjoying the liability protection of a corporation.

Restrictions on ownership interests

In many countries, including the United States, there is a rule that only lawyers may have an ownership interest in, or be managers of, a law firm. Thus, law firms cannot quickly raise capital through initial public offerings on the stock market, like most corporations. They must either raise capital through additional capital contributions from existing or additional equity partners, or must take on debt, usually in the form of a line of credit secured by their accounts receivable.

In the United States this complete bar to nonlawyer ownership has been codified by the American Bar Association as paragraph (d) of Rule 5.4 of the Model Rules of Professional Conduct and has been adopted in one form or another in all U.S. jurisdictions, except the District of Columbia and Arizona. However, D.C.'s rule is narrowly tailored to allow equity ownership only by those nonlawyer partners who actively assist the firm's lawyers in providing legal services, and does not allow for the sale of ownership shares to mere passive nonlawyer investors.

Editorial summary

This brief starts where responsible research should: with the source description of “Law firm” as business entity formed by one or more lawyers to engage in the practice of law. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewMost valuable as an event-and-institution map that identifies actors, dates and record creators for deeper historical inquiry. The current 430-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where firm, business and entity can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the history & society register because the source frames it as business entity formed by one or more lawyers to engage in the practice of law. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The record creator and administrative purpose are central evidence, because official documentation reflects both action and institutional priorities. The source revision retrieved here is dated Aug 19, 2026. The linked authority identifier is Q613142. The Library of Congress control number is sh85075307. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.

Critical limits

Official terminology may obscure informal participation, dissent or communities documented only indirectly. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.

Best used for
  • Event chronology
  • Institutional context
  • Locating named record creators
Verify next

Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.

Three-step research path

  1. Establish the record: confirm the title “Law firm”, its source revision and the description used here.
  2. Expand the search: follow Law firm primary sources, Law firm archive and firm research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Law firm”?
  2. What chronology connects this entry to wider political or social change?
  3. Who created the surviving record, and for what administrative purpose?
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Source & attribution

This entry incorporates text from Law firm” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.