I am not a Realtor in PA, but the home does appear to be on the market.
http://www.trulia.com/property/3015897406-9-N-Decatur-St-Marietta-PA-17547
http://9ndecaturst.isnowlisted.com/lister/
If you are interested in it, I recommend that you contact a local buyer's agent who will have access to the Penn MLS system to inquire about the home.... more