@Elizabeth Pharis
So sorry you are going though this. I have shared this with a couple of my partners and everyone agrees this is a textbook example of how bad a deal can go. I hope you find a solution that works for you and your family.
I suggest you try to find someone at the original mortgage company who will provide a statement that makes clear their intent was to include the property with the house, not the subdivide for the driveway. The earlier in the chain of transfers you can get this, the better your claim will be.
That said: @Greg H. @Kim Knox Do either of you really believe there is any possibility of her winning this case? (Sorry, Elizabeth) Real estate (in Texas) is always 'buyer beware' and based on the recorded documents not verbal or other agreements. While it is 'obvious' to any reasonable person that the intent was never to make these transactions on a driveway, if all of the documents reference that as the legal what recourse does she have other than a long and costly legal battle that few lawyers would take on contingency?
I hope she finds an equitable answer. The lesson here for everyone else is to make sure you know what you are buying and do not trust anyone you are not directly paying to do the job for you. Even then you have to be Reagan: Trust but Verify.