Here's the thing. There is a misunderstanding of 475.43 stated above. (This of course is an opinion but most states have similar verbage including Washington State which I've given this same response) It does not forbid assigning contracts. Sure the intent should be to close and its probably best to just close first and resell (wholesale) at a discount if that's what you want to do instead of selling full retail. But there is nothing in that law that says you can't assign. It actually gives rules to abide by if you want to assign your contract.
"however, this section shall not apply to irrevocable gifts, to unconditional contracts to purchase, or to options based upon a substantial consideration actually paid and not subject to any agreements to return or right of return reserved."
The however gives you right to assign. Similar to Washington. Contracts become unconditional at the point where conditions have been met. To avoid any confusion just make the contracts unconditional from the beginning. This shows full intent to close. If you don't close just forfeit your earnest money.
Sure intending just to assign your contract is should be considered brokering but anyone can get a loan these days for a property that is under contract at the right price so having the means to close is easy to prove. Its the intent. The law hasn't gone so far as to punish someone that thought they could close by not allowing them to assign their contract if everything goes bad (that hurts the seller and buyer) or for that matter it still allows someone who decides to sell their contract for a better price on occasion that they have a strong network.
The main thing is that people that wholesale (this is what they should call themselves vs wholesalers) should always have this as an option. They should buy intending to close but if they have a quick option so to sell their c