To search for a foreclosure, you can do so under the field "Miscellaneous." There are a couple of options that can represent a foreclosed home. For example, Lender Owned, Corporate Owned and VA Foreclosures. 

You can also add the fields "Remarks (public)" and "Agent Confidential Remarks" and type in "Foreclosure" to search all the public and agent remarks for a mention of the word.