@Karl Krentzel thanks for sharing the info.
@Account Closed you must realize one thing. This world is full of people who want something for nothing. You want cash buyers, be prepared to sell super discounted deals. Unless you're assigning, your deal will be bought with "cash". Regardless of where it came from and how. Unless you have issues with how people made their money.
To make life easier I would reccomend focusing on how they can help you instead of why they're trying to help you.
As for prequalifing, enough has been covered.
I don't have proof of funds, why? because my wife takes 100%of my money as the family banker or threatens me in wifely ways.
I only pick up deals I know I can move. So ultimately it's your choice on what you want to do or are willing to do. How bad do you need to move your deal? Who are you willing to trust to make it happen?
I'll give anyone a fair shot, will it bite me? You damn right it will, but shame on you the first time, shame on me the second time.
Stop hating on wholesalers and just set them straight! I do that with bad buyers! I can't tell you how many buyers want even more of a deal on an already discounted deal! Who does that!! If someone brings you a deal either take it or leave it or counter their offer. This is why you can't find good wholesalers. They'd rather deal with a few than to let everyone else on the deal and make some money.
I probably ranted and tagented here and there. So unm just focus on the good parts :)