By Dan Wing

PHILADELPHIA (CBS) – A federal jury has found a pair of Philadelphia men guilty of using violence and fraud to force women into prostitution at a strip club and brothel in the city over a four-year span.

The US District Attorney’s office says 34-year old Kevino Graham and 30-year old Raffael Robinson were found guilty of forcing women into working at and performing sex acts at the Passionate Touch Club in the city’s Cathedral Park section from May of 2009 to August of 2013.

The club even advertised services online, and by handing out business cards in the neighborhood.

Both face a mandatory minimum of 15-years in jail with the possibility of a life sentence in addition to fines and probation.

Two other co-defendants have already pleaded guilty and are awaiting sentencing.