What to do with your land if someone else has deed to your land also--Dimmit County, TX?

Thanks to each of you for response. I do think the “adverse possession” explanation is what we have been told so far. The puzzling thing to us is that there was no contact or attempt to contact our family regarding this situation when it went down.

I have found through research that this land has changed hands three times from 2005 to 2007 and the company that currently claims ownership has significant property in Dimmit County. The land is basically desolate and would probably be considered as a “ranch”, so I am unsure of how they could have been doing significant improvements or use on it?

I am having a difficult time getting the title company to contact me back and just want someone to look at our title, their title, and pertinent information to let us know what kind of case we have… I really don’t want to get hung up in a lengthy and costly legal battle, especially since I’m dealing with a big money corporation and I am a 10 acre landowner. I have had one opinion that we don’t have much we can do, but am having a hard time trusting just one voice on the matter…

Which again, I thank you all for your input…

I will update as I find more info and anyone else that has experience feel free to add your thoughts.