What can I do after discovering my husband’s hidden marriage?

Can anyone tell me, I received property, an own flat from my father as I am the legal heir. Does my husband have any rights to it? I do not have children. Can he sell or mortgage it without my signature or my father’s signature? Can he take a loan or claim my property without my knowledge? Does he have rights to it as though it is his property? Can I write a will and decide who inherits my property after me? Please reply.