The collateral is so so and some have preferences such as certain asset classes they will invest in, but generally speaking, you can obtain an equity deal with very little skin in the game. 

If your leasing application process is thorough and well thought out, and if your lease agreement has been well drafted by your local attorney and if it includes clauses that permit you/your property manager enough latitude to maneuver and anticipate undesirable tenant behaviors, both actions and inactions, and you have operational processes which align with enforcement of your lease, then you've done all you can do to reduce this inherent risk of an undesirable tenant.  

@Jake Baker Love the approach of measuring the total offers that you send, if you know your strategy most of the time it is a numbers game no matter the condition of the market. 

I'm also a licensed mortgage broker with a lot of fix-and-flip programs, including some that require as little as 10% down on the purchase price, and provide 100% of the rehab funding.

Can you give the forum a few numbers on your existing properties, including estimated values, current loan balances, current rent on the duplex and expected rent on the SFH?

Before buying or renting in an unfamiliar neighborhood, you should check the following two sites: SpotCrime, AreaVibes,These sites provide valuable information, including Livability Scores, which cover aspects such as crime rates, employment, health, housing, schools, shopping, and more.well, anything can happen anywhere.

Job included inside work of leveling floors, installing flooring, paint walls, kitchen cabinets, etc in both units, as well as lay a new driveway, fence the back yard, provide attic fans, and install electric to the crawlspace to add lights and a sump pump.

This would include doing mainly flips so i can get a solid return from that money or possibly even doing private money lending. 

I have personally advertised in Realty 411 its a real publication and as I stated  Linda I have know for over a decade personally and I am real I have 50 years in the real estate game..

Account for all costs, including closing fees, holding costs, and repairs.