[1] The court is presented with the novel question in this nonpayment eviction proceeding of how to determine a pending order to show cause of a now-deceased tenant of record seeking vacatur of a judgment of possession and warrant of eviction entered on default, and other relief, in the absence of a motion to substitute the tenant's estate as required by CPLR 1021. It is well settled that the death of a party divests a court of jurisdiction to conduct proceedings in an action until a proper substitution has been made pursuant to CPLR 1015 (a). (Griffin v Manning, 36 AD3d 530, 532 [1st Dept 2007].) An order issued after the death of a party without proper substitution is a nullity. (Leroy v Morningside House Nursing Home Co., Inc., 126 AD3d 652, 653 [1st Dept 2015]; Cueller v Betanes Food Corp., 24 AD3d 201 [1st Dept 2005], lv denied 6 NY3d 708 [2006].) Where a party to an action dies, any surviving interest in the action passes from the decedent to his or her representative, who may well have unique interests. (Wisdom v Wisdom, 111 AD2d 13, 15 [1st Dept 1985], citing Matter of Einstoss, 26 NY2d 181 [1970].){**68 Misc 3d at 1036}