Should I put my new husbands name on my homes?

I am a 48-year-old woman wiith four children and a grandchild. I own two homes and my fiancee, who will be selling his own home after we marry, has suggested I put his name on my homes. In return, he will pay an additional 75% of the monthly mortgage payments I already make. This way both houses should be paid off in five years. Are there any drawbacks to this idea? I have bad personal and business decisions in my life so I want to be sure.