Are you planning on hiring a property manager or someone who can respond to maintenance emergencies for you? 

Keep in mind how most emergency remediation companies work: The actual damage was probably under 1,000 to repair but they charge 10,000 knowing that your insurance will balk at the $10k and contest that amount, then they will probably end up agreeing to pay 5k so.

One card you should never use as it is only for emergencies that arise that were unexpected from the flip.You have three days to open as many cards as you want and it will hit your credit score only once.I also learned this from a real estate seminar I attended.

Save up ~$10k in HYSA emergency fund2.

You can then compare what you're doing to the PMC and even use the PMC as an emergency backup as needed.

A couple of things: - If you put more cash down, perhaps there are opportunities on the debt side that emerge - can you find assumable debt? 

Got an emergency call last week that one of the units toilet wouldn't flush and was backing up into the shower.

@Clay Hall, I like a HELOC on my primary residence as an emergency fund, and wish I’d had that extra money when I got started, simply as reserves.  

For me doing this gives me the flexibility that if something comes up I could use this savings in two ways for emergencies and for my savings goal.I have in the past taken more risk and put the money in low cost index funds within my taxable brokerage account like VOO but there is risk here. 

A duplex in the $100-200k range with a target CoC return of 8-12% is definitely within reach, especially in some of the emerging neighborhoods.In terms of areas, you might want to explore neighborhoods like Bagley, East English Village, and parts of Grandmont-Rosedale.