If your interest is another person's property I think that they would have to do the same thing. In most cases these checks may not reveal all liens. If you have concerns you should talk with a title officer. Property profiles are not a complete source for liens.
If you have an agent they can get a property profile. If you do not have an agent, call a title company and ask them to give you a property profile. Keep this in mind if you are going to the auction. You need to pull another property profile right before the purchase because things can pop in the few days before you hit the auction.
If you are purchasing through an agent, they should be on top of everything regarding that property at the time of the transaction.