Is it illegal to simply assign contract as a non-licensed investor in PA?

[Andrew Hofing]

A real estate attorney @ one my REI groups talked about the legalities of wholesaling in Pa and he said that negotiating the sale and simply assigning the contract via back to back closing for a fee is acting as a R.E. licensee, thus illegal for non-licensed investor. He said to get around this use a "Release Fee" in the contract to be received post closing. Anyone heard of this? The Attorney also said that when you do a back to back closing as middle man you are paying double transfer fees. So, do you have to do a simultaneous closing? I'm just not exactly sure how to put this all together.