Lamm v. Fisher - Superior Court - July 19, 2006
http://www.courts.state.pa.us/OpPosting/Superior/out/s31032_06.pdf
The court rejected the petition for redemption, under the Municipal Claims and Tax Liens Law, 53 P.S. 7293, of a person whose property was sold at a sheriff's sale, because the property was used for a commercial rather than residential purpose. The act "is unambiguous and limits redeption to a non-vacant property occupied as a residence."