Hi Maria:
Start with the following sites
htttp://www.foreclosurecleanupbusiness.org/
http://www.ehow.com/how_5416374_start-businessbooming-foreclosure-cleaning-business.html
http://www.cleanoutforeclosures.com/
Perry... more
Sometimes teh condos are listed as a whole under 1 address. as far as if it is a short sale or reo it should be stated in the comments section, some reo's are now asking the listing agent to not put that in however if it is a short sale it has to be stated as contingent upon sellers mortgage company acceptance of a short sale. lastly you would want to contact the management company of the association to see if there are liens. you should do a title search as well. good luck... more