Go to Etsy and search for "rental property tracker," and you will find hundreds of nice spreadsheets to track 10-20 rentals, usually for under $10.Software has extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

Search for this in a Michigan Public Notice legal newspaper or an online legal notice aggregator site like USALEGALNOTICES and the fount of MI pre FC/FC data will be available to you.

When I did an online search for commercial multifamily lenders, most have a minimum lending requirement of $1M and I don't need that much. 

In my experience, most of the online calculators are just taking an educated guess for you.

Take a close look at what other similar units look like on Zillow or other online listing sites and try and mimic them or exceed them.

https://www.lawmrm.com/jon-mcgraw/  Just call and make an appointment or request one online on his site. 

within 5-30 minutes of 4 wedding venues and about 10 minutes from a military base that does training.

Usually that just slows them down to train you and watch over you.Find out what someone likes, call it a gift, show you'll do anything to learn.

check the local municipal code, most are online.

They are a fraction of the price of those who advertise online.