My clients, a couple, bought a buy to let property jointly, and now, the husband wishes to reduce his share to 10% and declare 90% to his wife. Am I correct in filling a declaration of trust - beneficial interest agreement, with having both as owners in the agreement and the beneficiary being the wife only? Or is this agreement not the right one to change the share allocation of rental income and sale proceed? They had filled a form 17 and sent it to hmrc, but they have come back, rightly so, for a beneficial agreement. Any advice?