New York Laws
Title 1 - Discharge of Joint Obligors
15-108 - Release or Covenant Not to Sue.

(b) Release of tortfeasor. A release given in good faith by the
injured person to one tortfeasor as provided in subdivision (a) relieves
him from liability to any other person for contribution as provided in
article fourteen of the civil practice law and rules.
(c) Waiver of contribution. A tortfeasor who has obtained his own
release from liability shall not be entitled to contribution from any
other person.
(d) Releases and covenants within the scope of this section. A release
or a covenant not to sue between a plaintiff or claimant and a person
who is liable or claimed to be liable in tort shall be deemed a release
or covenant for the purposes of this section only if:
(1) the plaintiff or claimant receives, as part of the agreement,
monetary consideration greater than one dollar;
(2) the release or covenant completely or substantially terminates the
dispute between the plaintiff or claimant and the person who was claimed
to be liable; and
(3) such release or covenant is provided prior to entry of judgment.