The process of buying at auction is a simple 3 step process.  Let scottheise.com give you some pointers.

STEP ONE: View the Property
If Scott Heise is auctioning one or more of the real estate properties listings that are of interest to you, it is suggested to attend the open house or schedule a showing by appointment.  It is important to understand that all auctioned real estate is offered "as is, where is," which means what you see is what you get.

If you plan on bidding on the property, consult your financial institution to make sure your financing is in place prior to bidding on the property. As the buyer, you must determine what the property is worth to you "as is, where is", and buy the property at the price you set. If this amount you determine is within your price range, then this is what the auction industry refers to as your working bid. 

When deciding on your 'working bid' it may be helpful to check around the neighborhood.  Talk to adjacent property owners and local businesses. Determine the short and long term potential of the commercial or residential property. From the input, you may want to adjust your bid accordingly.

View: Step 1    Step 2     Step 3