Problem my debt to income is through the roof and I can’t count my wife’s income because her credit score isn’t good enough.

Holding property in a C-corp is generally considered a terrible way to title property.  

I have a potential partner for purchasing 5 SFR who will bring capital for the purchase and the deal, but does not have the credit for loans.

By the way, broker thinks we can get a $10k credit at close for a new roof needed.

Report them to Section 8 and send any uncollected charges to a credit reporting agency.

I use Cozy, they partner with a site (I believe an Experian offshoot) to run background and credit checks.

As far as capital to get started, after you've exhausted the VA loan, the typical and common answer for a primary residence is a 20% down payment with a credit score and cash reserves good enough to qualify for a mortgage.

I also just wanted to let you know for the sake of your calculations, I'm a loan officer and (depending on your credit) even with a 15 year note, you'd be lucky to find a 4.25% mortgage on a regular sfr with no points nowadays, let alone a jumbo loan like this would be.

Do you run background/credit checks? 

Worst case they hit your credit w a collection, which won’t hurt it more than 10-15 points.