My wife and I just bought our first house in NY state. Actually, she bought it, since she insisted that only her name be on the mortgage-title-deed

If you are upset regarding how this transaction was structured or created, in the confines of this answer, it would be impossible to discuss your options, which possibly could include, seeking a 'constructive trust' over the property. However, as a starting point, any property acquired during the marriage is considered 'marital property'. Again, depending on what your concerns and goals are, which are not reflected in your question, you really should consult with counsel. Gerry Wendrovsky, Esq.Upper West Side Lawyer www.upperwestsidelawyer.com