The city of Fort Worth actually provides a sealed bidding process to their tax foreclosed properties. This is NOT the court house steps auction process. These are properties, both commercial and residential, that were foreclosed upon because the owner did not pay their property taxes. This process makes all liens fall off. It also has a clause where the owner could come back to purchase the property back from the new owner within a certain period of time. With all things, do your research but if you haven't heard about these properties it worth checking them out.
http://fortworthtexas.gov/propertymanagement/realproperty/
