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.

Another idea is to do an Instagram wall on the lanai..have a mural and maybe a neon sign (some people name their house) and you can put that in neon and have people tag your house and help them advertise for you.

This will also help when you file 1099s to report the proper amount to the IRS and send a correct 1099 to the PM for their PM Fees and possibly any Advertising or Repairs they may have doneFor the mortgage you will split it like you have it except the Mortgage will split to include the Principal amount to the Liability and the Interest expense. 

It looks like you want an all in one accounting software where you can do the following1) Advertise your listings2) Allow tenants to pay you directly with various payment options3) Allow tenants to make repair requests4) Tracking of income and expenses.You may want to see if a software like Buildium can handle this.Best of luck

Some advertise in the Bigger Pockets marketplace.  

Quote from @Jay Levy: I recommend you include some of your key qualification criteria in the advertisement.

> Second, you're failing to recognize the power of leverage.true.  

Also recognize that construction costs will be 2-3x more expensive in this area than they were in Pittsburgh so be careful and make sure to understand pricing before going into a rehab. 

You can advertise it yourself and see if youre able to get any potential tenants and once you do I'd advise for you to hire an attorney to draw up a lease agreement including your NNN terms. 

@Sharma Parth City of Flint is losing population, so not a great place to invest:(Detroit on the other hand, has been growing for the last 5-6 years and finally the US Census Bureau recognized that (please Google to verify!).