Bought a tax delinquent property and it’s OCCUPIED?!

[Account Closed]

So I bought a tax delinquent property in South Carolina through an auction and was able to pay cash for it. It’s in the town I ultimately want to relocate to. The plan was to temporarily live there cheap/mortgage free while I found a more suitable home and then either resell it or keep it as a a rental. A friend did a drive by of the property and apparently there is someone living there and they were acting ‘suspicious’ of a strange person driving by and scoping out the property. I want to make contact with this person to take steps to have them evicted but I don’t know their name so I’m not sure who I would address a certified letter to. I’m open to the possibility of just renting it to them if they want to stay but they would have to sign a lease of course. 
No I did not know the property was occupied when I bought it, it was a good deal so I jumped on it. 

I’ve tried calling several lawyers in the area but only one returned my call and that was to say it was out of his normal area of practice, he did give me the name and number of a lawyer who does normally do that sort  of work but they did not call me back. How best to proceed?