But the real key is to find motivated sellers.

The good ones will have access to off-market deals. 

Cleveland is a great market if you know how to navigate it and have a good property manager.

- The property is probably NOT as profitable as you think it is.More reality for you - how are you going to cashflow enough from leveraged rentals to replace your current income?

I bought some commercial properties (5, 6, and 11 units) and they were all off-market and seller-financed.Learn how to make the numbers work for you and the seller.

I am trying to figure out how many markets I should focus on at once.

The guru your son is learning this technique from is likely not telling your son that the deal will almost certainly encourage your son to get an "off-market" deal from a "wholesaler" who is unlikely to properly disclose the details of the property or encourage an inspection. 

Then you can read a more in-depth book like The Book On Rental Property Investing by Brandon Turner or The Unofficial Guide to Real Estate Investing by Spencer Strauss.You need to get a firm grasp on two things: the ways to make money with real estate, and how to find deals that match your goals.P.S.

When you start to do a lot of projects, 50% is a lot of money to go out when you are scaling, finding deals, and doing all the other footwork.

do you guys post off market deals on there/is there a better place to find be off market deals in Canton rather than Craigslist or marketplace?