律师先生:我年近七旬,膝下无子,由于身体一天不如一天,就想请远房亲戚董某来照料我的生活,陪伴我聊聊天。作为报答,我考虑将自己居住的房屋遗赠给董某所有。有人告诉我,应当与董某订立一份遗赠扶养协议。请问:如何签订遗赠扶养协议?读者李清 Lawyer: I am almost seventy years old, no child under the knee, because the body one day worse, I would like to ask distant relatives Dong to take care of my life, accompany me to chat. In return, I consider the bereavement of his own living to Dongmou all. Someone told me that a bequest with Dongmou should be made. Excuse me: How to sign bequest support? Readers Li Qing