What to do when someone name is holding you back?

[Lutfiyya Portier]

Hey BP fam I’ve been at a crossroads for a few years now and I would LOVE advice or any information if my situation has happened to you

I I brought my first house when I was 25 from my father. I paid him and we did a quick claim deed. Over the next few years me and my ex were living and fixing it up. Needless to say the relationship didn’t work so I had decided to sell the property but came to find out when someone wanted to buy it there was another persons name on the title that dated back to  when my father purchased it. Apparently there were two sisters that sold it to him and only one signed but she had a letter stating she was power of attorney for the other sister but apparently that doesn’t hold up (I don’t know why) and Yes I didn’t do a title search when I brought the property from my father 🤦🏽‍♀️. so for the pass 15 to 20 years ( I think) this womans name has been on the tittle At this point idk what to do I have looked for her called siblings turn in paperwork stating her sibling was power of attorney and nothing has budge I own my house free and clear and it could help jump start my real estate career.. please if you have advice I would appreciate it 

P.S ALL ADVICE RECEIVED TO ME WILL NOT BE LEGAL ADVICE BUT MERELY SUGGESTIONS OF THAT PERSONS EXPERIENCE. I WILL SPEAK WITH MY OWN LEGAL.