In my case, I have residential rentals in one LLC, commercial properties in another, self storage in a third, and my real estate company operates in a fourth.

that we’ve learned in our 24 years, managing almost 700 doors across the Metro Detroit area, including almost 100 S8 leases:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+ (roughly 5% probability of default), zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680 (around 10% probability of default), some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

This deal looks really solid to me, but I have only been looking at rental properties as high as $600,000 in discussion with my lender.

One of my applicants showed up with little credit but no defaults, no evictions, and only traffic violations and verified income high enough to cover well over 3 times the rent and I accepted the tenant despite there being some signs.He paid the rent in time for the most part until a few weeks ago when he stopped and I could not get ahold of him.

For cash flow, I'd recommend checking out the Triad (Greensboro, Winston-Salem, High Point) or Fayetteville in NC and Sumter and Florence in SC. 

I like SFH in the A-B area rent it you do the  upkeep  doing as much as possible your self to help max your rent out .I like to pay down the note as fast as possible .If in a C-D area I would flip the SFH wash your hands of it.SFH are generally easier to unload if you get in a cash crunch, I like staying in the first time home buyers level of a SFH  keeping it in a hot zone .If I were a BIG fish I would do deals at various level's of course after  doing the home work .

Sounds like you need to have a relationship with a couple of good contractors, 40k for vinyl siding sounds high, what was the material cost.  

Quote from @Owen Wang: I am 17 years old and will graduate high school next year.

The market is competitive, so I focused on being the best—from high-quality furnishings to top-tier management.

In the past two years we have completed over a dozen flips, We are holding 20 rental units self managed and 2 self managed Air BnBs.