Legal Question on Property Tax Sale

[Talbert Floyd]

I am renting a property where the landlord did not pay the property taxes and the house sold at auction. In SC, he has one year to pay the tax debt and stop the sale from going through. I have a strong feeling he is not going to be able to. At the eleventh hour, I want to offer to pay the back taxes plus $1,500 to sign the deed over to me. I would go through a lawyer and give him the money to cover the taxes and the buy out. Once the taxes are paid and the tax sale is null, the deed would be filed in my name and the funds released to the "landlord". I feel like he would be desperate enough to take this deal, otherwise, he would still loose the property with no cash.  My question is: would this be legal?