My yearly cost to run my STR is $30k and I've been bringing in $100k for the last 2 years.

Or, find a business partner who has money, but not time. 

So FHA has two sections:FHA section 203(b) is intended for properties that are move-in ready.However, FHA section 203(K) enables homebuyers to finance the purchase of a home and the cost of its rehabilitation. 

They were referred to me by a friend of mine who owns the a large local business.

I operate another business out of the ground floor storefront.

The center has an extra 20 acres of greenfield zoned for additional retail.We know there is pent up leasing demand, but not sure what is current development costs as we haven’t built a thing since before Covid.Anyone can shed a light as to what is the current per square foot average these days?

I am not as concerned with cost and would prefer quality and transparency.

A simple mistake can cost you more money or time.Here's a pretty good guide: https://www.clarkcountyohio.gov/DocumentCenter/View/5210/CCO...

Be sure to factor in the effect of Unrelated Business Taxable Income (UBTI) if you borrow money (non-recourse loans only) to purchase the property by the self-directed IRA. 

The new investment earns $24,000 a year, but the mortgage + the equity loan cost will be $22,332—and that’s before you account for taxes, insurance, maintenance, capital expenditures, vacancies, etc.