A partner’s authority to bind the partnership comes from a single working rule: any partner is an agent of the firm, and any act that appears to carry on the partnership’s ordinary business binds every partner, unless the person on the other side of the deal knew or had been notified that the partner lacked authority for that specific transaction. That rule lives in Section 301 of the Revised Uniform Partnership Act (RUPA), and it drives nearly every dispute about who owes whom when a deal goes wrong.1New York Codes, Rules and Regulations. Maryland Code Corporations and Associations 9A-301 – Partner Agent of Partnership Everything below unpacks how that rule plays out and what a partnership can do to control its exposure.
Actual Authority: What the Partners Have Agreed Among Themselves
Actual authority is the internal baseline. It comes from what the partners have decided, either explicitly or by implication, that a particular partner can do on the firm’s behalf.
Express authority is spelled out. A partnership agreement might give the managing partner the power to sign contracts up to a stated dollar amount, or assign vendor relationships to one person. A vote at a partners’ meeting works too, though oral authorizations are harder to prove later.
Implied authority fills in the surrounding tasks. A partner put in charge of a retail location doesn’t need a separate sign-off to order inventory or schedule staff; those things are reasonably necessary to the job already granted. The limit is tight: implied authority covers what’s needed to carry out the express assignment, not whatever the partner thinks would be a good idea.
Both forms of actual authority are internal. A supplier or client doesn’t need to know whether the partner across the table has it. The question that matters to outsiders is apparent authority.
Apparent Authority and the Ordinary Course of Business
Most binding happens through apparent authority. Under RUPA Section 301(1), a partner’s act binds the firm when it appears to carry on the partnership’s ordinary business, or business of the kind the partnership carries on, even if the partner had no actual permission.1New York Codes, Rules and Regulations. Maryland Code Corporations and Associations 9A-301 – Partner Agent of Partnership The test is the reasonable perception of the third party, not what the partners agreed internally.
The nature of the business is doing most of the work here. A partner in an accounting firm who signs an engagement letter with a new audit client is plainly within the ordinary course. The same partner buying a warehouse of lumber is not. Courts look at what’s normal for firms in that industry.
The partnership escapes liability only if the third party actually knew, or had received a notification, that the partner lacked authority for the deal at issue.1New York Codes, Rules and Regulations. Maryland Code Corporations and Associations 9A-301 – Partner Agent of Partnership Suspicion doesn’t count. This is the real exposure for firms that haven’t bothered to tell their regular counterparties where their partners’ authority stops.
For acts outside the ordinary course, the rule flips. Under RUPA Section 301(2), those transactions bind the partnership only if the other partners actually authorized them.1New York Codes, Rules and Regulations. Maryland Code Corporations and Associations 9A-301 – Partner Agent of Partnership A deal no reasonable third party would see as normal for the firm doesn’t bind the firm without that sign-off.
Acts No Single Partner Can Bind the Firm To
Some decisions are too consequential for one partner to make alone. Under RUPA Section 401(j), any grant of authority outside the ordinary course of business requires unanimous consent of all partners, unless the partnership agreement sets a different threshold.
The original Uniform Partnership Act identified five categories that are presumptively outside any single partner’s authority:
- Assigning partnership property to creditors outside normal operations.
- Selling the firm’s goodwill — its client relationships and reputation — to another entity.
- Taking any action that would make it impossible to keep the business running.
- Confessing a judgment against the partnership.
- Submitting a partnership claim to arbitration.
Even where a partnership agreement relaxes unanimity to a majority vote, these are the kinds of commitments partners should negotiate carefully. A partner who takes one of them without consent has no apparent authority to bind the firm either, because no reasonable third party would assume a single partner could unilaterally sell the business or hand its assets to creditors.
Filing a Statement of Partnership Authority
A partnership can formalize who has power to do what by filing a Statement of Partnership Authority under RUPA Section 303. The document goes to the Secretary of State and sits in the public record. It must include the partnership’s name, the street address of its chief executive office, and the names and mailing addresses of all partners (or of a designated agent who maintains that list).2Federal Litigation. Uniform Partnership Act (1997)
Beyond the basics, the partnership can add whatever it wants: grants of authority to specific partners, limits on authority, or both. That is where the filing becomes strategically useful. The firm can publicly declare that a named partner cannot enter certain types of contracts, creating a record that matters if that partner later tries to bind the firm.
Real Property Is Treated Differently
The catch most people miss: a filed Statement of Authority gives the world constructive notice only for real estate transactions, and only when the statement is recorded in the county where the property sits.3Colorado Law Scholarly Commons. Notice and Notification Under the Revised Uniform Partnership Act – Some Suggested Changes For every other kind of transaction, filing a statement does not give constructive notice of authority limitations. The RUPA drafters made a deliberate choice: they wanted a public record system for real property but didn’t want to force everyone doing business with a partnership to check state filings before signing a contract.
In practice, the statement does its heaviest lifting when it names the partners authorized to transfer real property. If an unlisted partner tries to sell partnership land, the buyer cannot claim they reasonably believed the partner had authority. For ordinary commercial transactions, the firm still has to tell its counterparties directly where the limits lie.
Expiration
The statement does not last indefinitely. Under RUPA Section 303(g), it expires automatically five years after filing or five years after the most recent amendment, whichever is later.2Federal Litigation. Uniform Partnership Act (1997) A partnership that relies on the filing has to calendar the renewal. A lapsed statement offers no protection, and the firm may not notice it’s expired until a problem forces the issue. Filing fees vary by state.
Giving Third Parties Notice of Authority Limits
The strongest defense a partnership has against an unauthorized act is proof that the third party knew about the restriction. RUPA Section 102 draws careful lines between related concepts.3Colorado Law Scholarly Commons. Notice and Notification Under the Revised Uniform Partnership Act – Some Suggested Changes Knowledge means actual awareness of a fact. Notification means taking the steps reasonably required to inform the other party, whether or not that person actually learns of it; a letter sent to the correct business address counts as notification even if nobody reads it. Notice is the broadest: a person has notice when they know the fact, have received a notification, or have reason to know from the surrounding circumstances.
What this means in practice: whenever the partnership restricts a partner’s authority, it should send written notification to each regular counterparty. A letter to a supplier stating that a named partner no longer handles purchasing puts that supplier on notice. Any contract the partner later signs with that supplier is unlikely to bind the firm. Keep copies. Courts will look at whether the communication was clear enough to put the third party on notice at the time of the deal.
The Firm’s Liability for a Partner’s Wrongful Acts
Authority to bind the firm isn’t limited to contracts. Under RUPA Section 305, a partnership is liable for loss, injury, or penalties caused by a partner’s wrongful act or omission in the ordinary course of business or with the partnership’s authority. That covers torts like negligence, fraud, and breach of fiduciary duty committed in the course of partnership operations.
Liability is joint and several. An injured party can sue one partner, several, or all of them, and can collect the full judgment from any partner who can pay. A plaintiff who wins against two partners but can’t collect in full can pursue the remaining partners in a separate action. The partner who actually committed the wrong owes the partnership indemnification for whatever the firm pays out, which is cold comfort when that partner has no assets.
This is one of the strongest reasons for clear internal controls and adequate insurance. A single partner’s negligence on the job can reach every partner’s personal assets. Limited liability partnerships exist largely to address that risk by shielding innocent partners from liability for another partner’s misconduct, though the scope of that protection varies by state.
Ratifying an Unauthorized Deal After the Fact
When a partner acts without authority but the deal turns out to be worth having, the partnership can adopt it through ratification. Ratification works retroactively: once the firm accepts the transaction, it is treated as if the partner had authority from the start.
For ratification to hold, the partnership must know all material facts about the transaction before affirming it.4Justia. Perretta v. Prometheus Development Co., Inc. Partial knowledge isn’t enough. If the partners learn about a favorable lease term but not about a penalty clause buried in the same agreement, their acceptance of the benefits doesn’t necessarily count as valid ratification, because they lacked full disclosure.
No formal vote is required. Conduct is enough. If a partner secretly signs a lease and the firm starts paying rent and using the space, those actions show intent to adopt the deal. Courts look at whether the firm’s behavior lines up with accepting it.
One rule trips up partnerships that try to be strategic: you can’t ratify the parts you like and reject the rest. Ratification covers the entire transaction. A principal cannot enforce the beneficial portions of an unauthorized deal without also accepting the burdensome ones.5Ohio State Business Law Journal. Ratification, Constructive Consent, and the U.S. Supreme Court A favorable supply agreement bundled with an unfavorable exclusivity clause has to be taken whole or rejected whole.
If the partnership refuses to ratify, the third party is not left without recourse. Under basic agency law, a person who claims to act for a principal but lacks actual authority is personally liable to the third party. The partner implicitly warranted they had the right to make the deal, and the counterparty can pursue the partner individually for any losses even though the firm isn’t on the hook.
When a Partner Leaves the Firm
A partner’s departure — “dissociation” under RUPA — ends actual authority immediately. Apparent authority is where firms get burned if they don’t move quickly.
Under RUPA Section 702, a dissociated partner can still bind the partnership for up to two years after leaving when three conditions line up: the third party reasonably believed the person was still a partner, the third party had no notice of the dissociation, and the third party isn’t deemed to have constructive notice from a filed Statement of Dissociation.6Justia Law. Maryland Code Corporations and Associations Title 9A-702 – Dissociated Partners Power to Bind and Liability Two years is a long window for a former partner to generate obligations the firm never agreed to.
The fastest way to cut off that lingering authority is to file a Statement of Dissociation under RUPA Section 704. Either the partnership or the departing partner can file it. Once filed, it gives constructive notice to the world after 90 days, after which no third party can claim they reasonably believed the former partner still represented the firm. The firm should also notify major clients, vendors, and lenders directly rather than relying on the filing alone, since the 90-day gap still leaves exposure.
Partnership by Estoppel: Binding Without Being a Partner
A person doesn’t have to actually be a partner to create liability. Under RUPA Section 308, if someone holds themselves out as a partner, or lets someone else represent them as one, they become liable to anyone who relies on that representation and enters into a transaction.2Federal Litigation. Uniform Partnership Act (1997) When the representation is public, the purported partner is liable even to people they didn’t know were relying on it.
The consequences depend on consent. If all partners consented to the person being held out as a partner, the partnership itself is bound by whatever that person does within the scope of the representation. If only some partners consented, those consenting partners and the purported partner are jointly and severally liable, but the partnership as a whole is not.2Federal Litigation. Uniform Partnership Act (1997)
This cuts both ways. A firm that casually introduces a consultant or employee as a “partner” on its website or in client meetings may be creating liability it never intended, and the person being held out picks up exposure they didn’t bargain for. Be precise about who gets called a partner in anything public-facing.