<prompt> Human: Per the title, weve lived together for 13 years and split most costs. At times each made more . He has spent on paint, roof, etc BUT Ive lived in the house for almost 25 years with a hefty down payment. He HAS contributed to the improvements and as time has gone by, increased value of the home. How do I fairly compensate him? Thanks!  <response>: I know in my state after that long its a common law marriage and you basically need a divorce. Call an attorney, otherwise hell do it first and then youll lose the advantage. 