Maybe half upfront and reduce the rate of interest on the balance..

Ask yourself: do I really have the knowledge of real estate principles, real estate law and real estate finance; the network of contacts; the experience both in business in general and real estate in particular; the time available; and the analytical ability to compete against FULL TIME EXPERIENCED PROFESSIONALS to be successful in a field where the failure rate is so astronomically high?  

A real basic guess is 30 houses each cashflowing $1,000/month.In Metro Detroit, this means $1500+ in rent, with the difference convering taxes, insurance, maintenance and vacancy - NO MORTGAGE!

Probably 8%+ mortgage interest at 40% down to make a safe assumption.

My biggest conundrum now is I want to be my own GC because even when I play with smaller numbers they’re still out of reach for me to be able to attain this goal and afford the monthly mortgage with taxes and insurance.

Mortgage payment is approx $1800.

Just make sure you’re comfortable with the interest rate if going either route.  

Coupled with persistently high interest rates that may last for years, rising insurance premiums are inevitable, regardless of your property’s condition.

How to Price the Condos: Do a reverse amortization schedule for a 30-year mortgage based on Room Rental Prices in the Area.

Does the revenue good enough at least to cover the mortgage payment?