Seller wants to donate prop but has clouded title what do I do?

[DeJarian Dickson Graham]

I have a seller who wants to donate a property to me.  The only cost I have to incur upfront is $937.00,  3 years in back taxes plus my attorney fees. The property was tax deed sale in 2014 and has been vacant for several years. The seller has moved to another state and just wants to sign it over and not deal with it. When I had my attorney run a title check my closing attorney stated the title was clouded and the prior owner has superior interest to the seller that’s looking to sign  it over to me. Attorney also stated that the prior seller with superior interest also owns a convenience  store, which was purchased cash $900k in 2007.  Long story short, I will need to do a quiet title action. What should I do?  Should I reach out to prior seller with superior interest or go through the quiet title action? Any insight would be helpful.