Tenant with trust fund

[James Baltayan]

I'm hoping someone has run into this before. I have a SFH that I just put up for rent on Craigslist. I received a response from a prospective tenant who says his family owns a company in the area and he gets money put into a trust fund every month. He just opened a new business with a partner and the income from that is low. He says he would pay the rent out of the trust fund and that he has paperwork to prove he has the trust fund.

My question is how do I know that the paperwork he gives me is real?  Has anyone had a tenant like this before and can give me advice on how to do due diligence?  I already plan to check his documentation, call his previous landlord (has been there several years but now needs a bigger place), do a credit check and background check.  Thanks for any advice.