If your guy is preapproved for a loan, his bank most likely isn't going to fund the deal with income like this for the reason that you mentioned, free cash doesn't even cover debt service.

could public welfare pay for it?

Let me know if you are still in need of services to help you locate your Home

And depending on how he deals with them (whether he tries to handle the claim himself, or hire a Public Adjuster, which I recommend), settlement amount can range drastically.Depending on the extensiveness of the damage, most of the time, Public Adjusters are looking out for the insured's best interest, since they work on a percentage of the proceeds, so they'll point things that need to be remedied to the insurance company, that the homeowner will have no clue about.

Many of them are offering bargain price properties, but don’t consider things like cashflow, tenant availability and service people to manage the property, which means, despite the low price tag, the property isn't a great investment.

You have to pay the monthly subscription service per Company you set up.

I know many great CPAs who structure their business so that they can deliver quality service at a lower rate.

Looking for recommendations on websites/services for calculating market rent in a given area.

Multiple Listing Service. 

Setco Services