Loan Assumption Addendum. An assumption transaction may be accomplished with or without consent of the lender.The transaction involves only a title transfer. Ensure all necessary financial information is accurately provided. This document gives the Seller a lien on the property to secure the Buyer's promise to pay the mortgage. Downloadable forms for eFiling, Divorces, and Suites Affecting the Parent-Child Relationship, Child Support, Hail Claims, Legal, LegalEase, and Passports.