As others have said, get an attorney TODAY! Based on what you've said (prominent person in Dallas), you should know enough people that have good contacts for good lawyers. Half of everything is rightfully yours.
Start calling all your friends today and start building the support network you need now to get through this.
DO NOT be ashamed about this situation!
While I don't think there's a church that is going to help save the home of the wife of a "Prominent person in Dallas", many do have groups that help folks emotionally and spriritually that are in your situation. So, you might find it helpful to contact churches for this reason. If you don't have a church, you might want to try to find one.