This is a difficult situation. First advice is to get a lawyer of your own. The answers to your questions are complex. In order to probate a will, you have to have the original will, unless you can explain what happened to it. So, first, someone needs to evaluate on your behalf what the result is if there's no will, and what the result is under this will that's on disk. If you'd rather have the will, let them probate the copy; if not, then object to the probate of that will. Basically, you have to decide whether you will inherit enough to make this worth the fight; if yes, hire a lawyer.
Answered on Jan 03rd, 2014 at 11:37 AM