Questions about Wholesale housing

[Derrick Gray]

So a brief understanding of what I've learned after days of research is that one who wants to be a wholesaler gets a property under contract then assigns that contract to a investor to make profit. My questions are 1. Once a house is under contract, how long do you have to assign it. What happens if you don't get it assigned in that time period. 2. Should you find a investor first or get a home under contract first? 3. Also any tips on getting leads would be greatly appreciated. I plan to move forward soon and actually make a effort to get the phone ringing.