No, he's not an architect, he drew all designs, floor plan, site plan, etc, and we had a structural engineer design his part, and paid an architect to sign off on them.  

Given that the seller is financing the deal for the 2 years and then the plan is to re-finance it with a bank, I am having difficulty producing such financial analysis.

And also that rates are just going to continue to be an issue, so it's likely something to plan for in rent rates and/or overall investment costs. 

I’m in a small financial bind right now and I could use the $300 back, especially since I’m not really planning on using the pro features any time soon. 

That means paying all cash isn’t an option unless you plan to bring another $600k to the table. . 

Plenty of people do have 10-20 unit and work thru it, you just need to think it thru and have a plan if you don't want to do all the work. 

We have a development coming up for approval with the county adding over 100 units bordering our small town and you can bet everyone that lives in our town is upset about it. in the end though, the planning commissions in our area tend to follow the letter of the law so to speak, so if there is nothing in ordinance barring it, they will approve, generally.

Their entire business plan is wait a few days to come out, charge  deductible, go back to the office to order a part or two that will come in a day or two.

Or are you planning to put 100% of the risk/cost of vacancies, furnishings and tenant nonpayment on the owner with you having 0% risk?

The game plan would be to keep this structure for 1-2 years with future full sale.