2006 New York Code - Offer Of Accord Followed By Tender

 
    § 15-503. Offer  of accord followed by tender. 1. An offer in writing,
  signed by the offeror or by his agent, to accept a  performance  therein
  designated  in  satisfaction  or  discharge  in  whole or in part of any
  claim, cause of action, contract, obligation, or lease, or any  mortgage
  or  other  security  interest  in personal or real property, followed by
  tender of such performance  by  the  offeree  or  by  his  agent  before
  revocation  of  the offer, shall not be denied effect as a defense or as
  the basis of an action or counterclaim by reason of the fact  that  such
  tender was not accepted by the offeror or by his agent.
    2.  If  executed by an agent, any offer required by this section to be
  in writing which affects or relates to  real  property  or  an  interest
  therein as defined in section 5-101 in any manner stated in subdivisions
  one  or  two  of section 5-703 of this chapter shall be void unless such
  agent was thereunto authorized in writing.