Investor friendly RE Attorney

[Lawrence Eddy]

Hello, So I'm just getting into real estate investing. My professional experience is in avionics. However I would like to start building a portfolio of cash investors and seeking out prospective properties for them (wholesaling). So my question is: If all I am doing is getting homes under contract and either assigning that contract or possibly going thru a double close do I need to have an LLC or S-Corp entity in place first or even at all? Would anyone happen to know of a good Washington real estate attorney? Also are there any successful tips to building a good cash buyers list?