Short sale with hard money and proof of funds

[Rafael Floresta]

I came across a short sale that can't be financed with conventional loans, due to the amount of repairs needed.

I currently don't have the cash needed to finance the deal personally, as my money is locked in another rehab. I am looking into hard money or private equity to make it work.

I have access to a friend with enough money to work as a private lender also have been approved by a hard money lender in the past.

The realtor said I need to provide a proof of funds. How do I do it? What is the best way to provide the documentation necessary?