@Aaron L. You said "I found an off-market deal consisting of 3 duplexes that I might be able to buy for less that 80% of ARV"
Please clarify. Are saying that your purchase price for the three duplexes would be less than 80% of ARV? What about repair costs? I like to see deals that I could acquire for 70% of ARV, after repair costs. In other words, take the AVR times .7, and then subtract the repair costs, and this should be the most that you should pay for the properties. I do like the 70,000 equity. Not so much 1,000 cash flow (I also assume you are talking about actual net income after expenses, including ongoing repairs, management, replacements). I like to see 500.00 a month per unit. I also like single-family houses, so duplexes may show a little less, however not much less, as I would assume you will generally see more turnover in a duplex then a SFR.
Just my thoughts. Remember deals of a lifetime come more often than that, and good deal a whole lot more still. It is easier to find good deal when you are looking for deals. I look for deals all the time, perhaps a little less when I am actually working on one.
Good luck in whatever you choose to do.