liability issues!!

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Just went under contract with my first single family 5 BR row. I have some liability questions that I am really concerned about. Yes, I should have taken care of these issues before hand, but with this being an estate sale the price was right. Was on market for a week with 4 bidders(including me). So here are my questions: Can I transfer the property into a LLC after I make settlement. Can I use my name with a PO BOX for contact info, or is that pointless. No company name set up as of yet. I will have plenty of insurance set up, but I am hoping I didn't put myself behind the 8-ball on this first IP.

Thanks in advance for any help!!!