she has all negotiable rights to the property as you do without any of the liability if she is on title.
It sounds like you'll need a 3rd party to help you solve the sale related issues.
Somebody who'll be neutral - like a mediator.
By doing things without your wife's consent you might get yourself in trouble with the law and end up paying more. So, be careful and have an attorney help the both of you out of this situation.
Hope this helps,
Beachfront Realty, Inc.
If she is on the deed she will have to sign at closing and consent to the sale.
You might want to speak with your attorney to figure out how much she would be entitled too. For example if you owned the house before you married her you might be able to work something out. Talk to your attorney..
Real Estate Broker
Real Living FSR