A new private lender and a new buyer

[Stacy Patlan]

I have a situation. I have a house for sale 40k asking. I had an offer for 35k and accepted verbally. I then received and offer for 38k but he needs 30 days for hard money close. Buyer (A) said he's willing to lend to buyer (B). How do I structure this? Buyer (B) said okay but I don't want to loose deal all together. What do I need from lender and buyer? Should lender put down deposit so he doesn't back out of lending deal?