Question about the process of real estate whole selling

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Hello all,
I am new to real estate whole selling, I am still doing research and reading on the matter. I have a general idea of how it works but a few of the minor details I am stuck on, they are:

Once I make contract and have motivated seller sign it, do I take it to a title company?

Once I find a buyer and re-assign my contract to the new buyer, do I take the re-assignment contract to the title company?

If I make a contingency contract to buy from a motivated seller for $50,000(example price) and find a buyer willing to buy for $60,000(example price) how exactly do I go about collecting the $10,000 difference?

Thanks in advance,
Walter.