Buying from a wholesaler?

[Sean H.]

Im going to buy a lot from a wholesaler. If he asks for a dd, hat can i do to safeguard myself in case any liens show up. I assume he is not a licensed realtor, so i would assume a dd contract would be less legitimate. It's an empty lot, so besides a survey (which i'm afraid could take awhile). I can't think of any other things i need to get inspected. 

I told him my lawyer will probably be able to close on it in about a week, so it will be fast close.