My husbands name is still on his original mortgage with his ex wife. She wants us to sign a quit claim deed to get his name off the mortgage.

Your husband needs to have the divorce decree reviewed by experienced family law counsel, for the decree should state how he is to be removed from the mortgage. Signing a quit-claim deed only transfers title and does not clear him from the mortgage.   Get your husband to an experienced family law attorney. I have handle such matters.