In December 1998 he started the Windstone Group, of which he is the Chairman. Windstone is involved with the financing and operations of senior housing, healthcare, mortgages, and the promotion of long-term care insurance. Over the course of his career, Mr. Davidson has been instrumental in the development of well over 10,000 housing units (the vast majority of which were devoted to seniors) and other properties worth well in the excess of $1 billion.