First Auction: Due Diligence

[Dreton L.]

Getting ready to bid on my first property on Auction.com. I've heard some mixed reviews about this site and their unexpected fees, but I'm trying to calculate that into a lower purchase price. The property has no HOA; it seems like that is the most common lien on auctions. What other types of liens should I be looking into? The property is in the midwest, vacant, and would be an out of state purchase for me.

I've previously only purchased properties through loans & agents. What type of due diligence should I be doing? I'm trying my best to do research and be cautious with an auction.  

(First post on BP - glad to join the community!)