Sorry to hear that John. Sounds like you bought a property from somebody 4 years ago and the title was never recorded / transferred to your name. Now the seller passed away and the probate court awarded property to somebody else?
Unfortunately, sounds like you don't have title insurance either since you never had the title - The title company would have made sure you have the proper title to the property. It does sound like it's time to talk to real estate attorney. Hopefully you have all the documents in place.