Definitely ask your realtor about appreciation in the area you're looking to purchase.  

Purchase price: $130,000 Cash invested: $28,000 Purchased this one via 1031 exchange out of a SFH.

I'm looking to purchase smaller MFs. 

I am a new investor and I am in the process of purchasing a property with my Heloc (7.75% fixed for 60 mo).

Hi Zach, I’ve recently purchased a planner that is very similar to this.

By the way, this comment isn’t directed specifically towards you Mark: Jesus Christ I wish I didn’t post this now.

I used it to purchase an off market deal and am about to refinance to pay it off and pull out equity (550K total). 

Quote from @Ryan Grise: Check your state law to see if there are specific requirements.

Real estate investors rely on cap rates to analyze deals and compare potential returns before making a purchase.🔍 Understanding Cap Rate:- On the surface, the cap rate is one of the best ways to determine whether a deal is worth pursuing.

You most definitely can go in on a Fourplex with 3.5% down, primary residence, living in one of the units, find out what purchase power you have, and what the rent rolls for the other units will be to determine your cash flow.