I am divorced and my name is on the mortgage. My ex wife is on the deed. Who is responsible for taking care of home insurance. The ex wife resides in house?

This matter should have been addressed during your divorce proceedings when you had benefit of legal counsel.

You need to review all the documents you signed when you executed your mortgage. There is probably a document that requires you to maintain insurance. If there should be a fire and the premises are not insured, the bank could sue you for breach of your mortgage contract. You may be vulnerable to unforeseen legal problems if the insurance has lapsed.

Perhaps you should speak with the attorney who represented you in the divorce for a review of this situation.
This matter should have been addressed during your divorce proceedings when you had benefit of legal counsel.

You need to review all the documents you signed when you executed your mortgage. There is probably a document that requires you to maintain insurance. If there should be a fire and the premises are not insured, the bank could sue you for breach of your mortgage contract. You may be vulnerable to unforeseen legal problems if the insurance has lapsed.

Perhaps you should speak with the attorney who represented you in the divorce for a review of this situation.