all of our legal contracts and documents are drafted and regularly updated by licensed attorneys. all of our legal contracts and documents are drafted and regularly updated by licensed attorneys. all of our legal contracts and documents are drafted and regularly updated by licensed attorneys. an assignment of partnership interest form is used by a partner to sell their interest in the partnership to a new partner. keep in mind that in some cases full partnership rights cannot be sold to the new partner unless all current partners also agree. an assignment of partnership interest is a legal document that transfers the rights to receive benefits from an original business partner (“assignor”) to a new business partner (“assignee”). this document is needed to formally document a business transaction that occurred between the old partner and the new partner.