I require that every buyer provide proof of funds concurrent with an LOI/IOI. If the answer isn't bank statements, investment accounts, letters of credit, home equity, or some other near-liquid source, in all likelihood, we aren't engaging. Buyers who expect the seller to be substantially their bank don't get attention from sellers of quality businesses.

I understand a broker asking for POF but its sometimes a BS game. I can show a PFS and POF but it doesn't mean I can get the deal done nor does it mean I am even using my own capital. It takes some finesse on the buyers side and some common sense on the brokers side given the buyers experience etc.