Forms ; How To Commence A Civil Action. A partition action is a legal remedy used when coowners of a property cannot come to an agreement on how to divide or manage the property.This document is a deed of sale and partition involving the sale and division of a parcel of land. Edit, sign, and share partition action forms online. No need to install software, just go to DocHub, and sign up instantly and for free. This article provides a basic overview of the Uniform Partition of Heirs Property Act as enacted in New York State. The parties signed the agreement to legally terminate their community ownership and determine their respective shares in the property.