Can a law firm call another firm 'affiliated' on its letterhead, and does that force them to clear conflicts as one firm?

Plain-English summary

As firms increasingly pooled resources through cooperative arrangements, the Committee was asked whether it is proper under the Code to describe another member of such a group as "affiliated" on letterhead and professional notices, and whether affiliated entities must treat all of their clients as one pool for conflict purposes.

The opinion concludes the term "affiliated" or "affiliate" may be used only where the relationship is "close and regular, continuing and semi-permanent," the same threshold the Committee and the ABA (ABA Op. 351) require for a proper "of counsel" designation. The Committee traces its own precedents, including N.Y. City 82-28 (rejecting "affiliated" as misleading absent such a relationship) and Formal Op. 1995-8 (permitting "associated" or "affiliated" where an of-counsel-type relationship exists, with disclosure to clients). It reaffirms that loosely using "affiliated" for an informal referral relationship would be misleading under DR 2-101(A) and DR 2-102.

Because the relationship that justifies the label is as close as "of counsel," the opinion holds the same imputation consequence follows: affiliated firms must consider themselves a single unit for conflict clearing, attributing each firm's disqualifications to the others, consistent with ABA Op. 90-357 and DR 5-105(D). The Committee declines to expand "affiliated" to looser arrangements, reasoning that doing so would invite firms to grow through "alliances" specifically to evade conflict imputation and would risk public confusion about the nature of the relationship.

In practice

Under the New York Code as it stood at the time, the opinion holds that the "affiliated" label and one-unit conflict clearing travel together: a firm may not advertise an affiliation it is not close enough to support, and a firm that does claim the affiliation must clear conflicts across all affiliated firms as if they were one. The Committee ties permissible use of the term to the of-counsel threshold and to the Code's prohibition on misleading communications.

This opinion applies the former New York Code (DR/EC numbering). New York replaced the Code with the Rules of Professional Conduct effective April 1, 2009; the letterhead and firm-name provisions of DR 2-101 and DR 2-102 now correspond to Rules 7.1 and 7.5, the concurrent-conflict and imputation provisions of DR 5-105 to Rules 1.7 and 1.10. Verify the current rule text before relying on any specific requirement.

Common questions

Q: When can a firm call another firm 'affiliated' on its letterhead?

A: The opinion concludes the term is proper only when the relationship is "close and regular, continuing and semi-permanent," the same standard required for an "of counsel" designation.

Q: Does calling firms 'affiliated' require clearing conflicts together?

A: Yes. The opinion holds that affiliated firms must treat the clients of each constituent firm as their own when determining whether a conflict exists, attributing disqualifications across the group.

Q: Can the term be used for a loose referral relationship?

A: No. The opinion declines to extend "affiliated" to arrangements short of an of-counsel-type relationship, reasoning that doing so would be misleading and would let firms evade conflict imputation.

Background and rules framework

The opinion interprets the former New York Code's advertising rule DR 2-101 (no false, deceptive, or misleading communications), the professional-notice and firm-designation rule DR 2-102, and the concurrent-conflict and imputation rule DR 5-105 (including DR 5-105(D) on firm-wide imputation). The corresponding Model Rules are MR 7.1, MR 7.5, MR 1.7, and MR 1.10. It draws on ABA Formal Opinions 351, 388, and 90-357.

Citations and references

Rules of Professional Conduct:

• MR 7.1 (communications about a lawyer's services) / NY DR 2-101
• MR 7.5 (firm names and letterhead) / NY DR 2-102
• MR 1.7 (concurrent conflicts) and MR 1.10 (imputation) / NY DR 5-105, DR 5-105(D)

Cases:

• Nemet v. Nemet, 112 A.D.2d 359 (2d Dep't 1985), imputation through an of-counsel relationship

Other opinions cited:

• ABA Formal Op. 351 (1984); ABA Formal Op. 388 (1994); ABA Formal Op. 90-357 (of counsel and one-unit conflict clearing)
• N.Y. City 82-28; N.Y. City Formal Op. 1995-8

See also

• NYC Bar Ethics Op. 2013-3: 'Of Counsel' Designation
• NYC Bar Ethics Op. 2005-06: Retired Attorney's Use of Professional Letterhead
• ABA Formal Op. 507: Office-Sharing Arrangements

Source

• Landing page: https://www.nycbar.org/reports/formal-opinion-2000-4-listing-affiliated-firms-on-letterhead-and-elsewhere-affiliated-law-firms-clearing-conflicts-as-a-single-unit/