Legality of assignment contract

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So I want to start wholesaling houses but I don't have money to buying a house and I learned that I can use contract assignments to make money without having to buy a house but in some states its illegal and some its legal. So I read on a article on biggerpockets that I should seek a attorney and ask them if its legal in my state to do this and I was thinking of asking contacting the Alabama State Bar. But was hoping someone could tell me of any good real estate lawyers in Alabama I live in Selma Alabama so I would really like one that's close to where I live