If a part interest in a contract obligation be assigned, the assignor retaining the remaining interest and the assignee may join as plaintiffs.
Section 9-15.Assignee of Part Interest
Current through August 12, 2025 (2026 Practice Book edition) · Last verified July 9, 2026
In one sentenceWhen someone assigns only part of their interest in a contract claim, the original party and the assignee can join together as coplaintiffs to sue on it.
Full Text of Section 9-15
Amendment History
(P.B. 1978-1997, Sec. 95.)
Plain-English Summary
This rule addresses a partial assignment of a contract obligation. When an assignor transfers only part of their interest in the obligation, keeping the rest for themselves, the rule lets the assignor and the assignee bring the claim together.
The assignor, who retains the remaining interest, and the assignee, who holds the assigned interest, may join as plaintiffs in the same action.
Frequently Asked Questions
Can an assignor and assignee sue together after a partial assignment?
Yes. If a part interest in a contract obligation is assigned, the assignor retaining the remaining interest and the assignee may join as plaintiffs.
Does this rule apply to a full assignment of the entire claim?
The text addresses a part interest being assigned, where the assignor keeps the remaining interest; it speaks to that partial-assignment scenario specifically.
How is this different from an assignment during a pending suit?
This rule covers assigning a part interest in a contract obligation before or apart from suit; Section 9-16 covers assigning the whole cause of action after the action is already pending.
Source & verification. The section text is reproduced verbatim from the
official Connecticut Practice Book (Conn. Practice Book § 9-15). Prescribed by the Judges of the Superior Court of Connecticut (Conn. Gen. Stat. Section 51-14). The plain-English summary is original and written by us. Last verified July 9, 2026. ·
Official source
Also known as: partial assignment of contract claimassignor and assignee joined as plaintiffspart interest assignment lawsuit CTjoint plaintiffs after partial assignment