Litigation & Advocacy · 10-16% of the exam
15.2When the Lawyer Is Also a Witness: the Advocate-Witness Rule (Rule 3.7)
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- Rule 3.7 — Lawyer as witness
Rule 3.7 bars a necessary witness from also serving as trial advocate. Three narrow exceptions apply; the disqualification is personal and doesn't reach the firm.
Why
A factfinder cannot cleanly separate the person swearing to what happened from the person arguing what it means. When one lawyer does both, the argument quietly borrows the credibility of testimony, and the other side is put to cross-examining its opponent's advocate.
Plain English
Don't act as advocate at a trial where you are likely to be a necessary witness, unless:
- the testimony relates to an uncontested issue, or
- to the nature and value of legal services rendered in the case, or
- disqualification would work substantial hardship on the client.
The client's informed consent is not itself an exception. The disqualification is personal: a firm colleague may try the case unless Rule 1.7 or Rule 1.9 independently bars it.
Rule
Rule 3.7 — Lawyer as witness
General rule (Rule 3.7(a)): A lawyer shall not act as advocate at a trial in which the lawyer is likely to be a necessary witness, unless:
- The testimony relates to an uncontested issue;
- The testimony relates to the nature and value of legal services rendered in the case; or
- Disqualification would work substantial hardship on the client.
Note: client consent alone is not an exception. A client's informed consent does not eliminate the disqualification unless one of the three conditions above is independently satisfied.
No imputation to the firm (Rule 3.7(b)): The disqualification is personal to the testifying lawyer. A colleague in the same firm may still serve as trial advocate, unless a separate conflict of interest under Rule 1.7 or Rule 1.9 independently bars that representation.
If the testifying lawyer's expected testimony could harm the client, a material-limitation conflict may arise under Rule 1.7 for the colleague serving as advocate; that separate conflict may be addressable with informed consent confirmed in writing.
Comment [7]: where the testifying lawyer would herself be disqualified by Rule 1.7 or Rule 1.9 from representing the client in the matter, the other lawyers in the firm are then precluded from representing the client by Rule 1.10, unless the client gives informed consent under the conditions stated in Rule 1.7.
Example 1
Ex. 1
Dan, a transactional attorney, drafted the contract now at the center of a breach-of-contract trial. The parties sharply contest what a key provision means, and Dan's intent when drafting it is directly relevant evidence. He is subpoenaed as a fact witness. His client, Elena, wants Dan to handle both his witness testimony and closing argument at trial. Rule 3.7 bars that arrangement. The uncontested-issue exception doesn't help because the contract's meaning is very much in dispute. The legal-services exception doesn't fit because the testimony concerns the underlying transaction, not the value of Dan's legal work. Neither party has shown that finding substitute trial counsel would cause substantial hardship. Elena's genuine consent doesn't change the outcome. A firm colleague may step in to handle the trial-advocate role without the whole firm being disqualified. Match Dan's testimony against each of the three exceptions in turn — the drafting dispute defeats the first one.
Client consent isn't an exception; one of the three conditions must independently apply. The disqualification is personal; a firm colleague may advocate subject to Rule 1.7 or Rule 1.9.
The disqualification bars only the trial-advocate role. A necessary witness may still conduct discovery, draft documents, negotiate, and counsel the client; the bar is limited to appearing as advocate at the trial. Is this the trial itself, or the work that leads up to it?
Questions · 2
Q 01ch15-e06
Question 1 of 2 · Rule 3.7(a)
Attorney represented Landlord in a suit to enforce a commercial lease against Tenant. Tenant's defense is that the parties orally agreed to cut the rent for one slow season, and the only person present for that conversation besides the two of them was Attorney, who had walked in on it. Tenant intends to call Attorney to describe what was said, and Landlord's account of the same conversation is squarely disputed. No other witness can supply the account. Landlord wants Attorney to try the case anyway and has said so in a signed letter, and replacement counsel is readily available at similar cost. May Attorney serve as trial advocate?
Keys 1 to 4 choose.