Unfortunately, given current and foreseeable prices and interest rates, I will not be in the position to buy anything else anywhere I’d want to go. 

That’s a great move—starting early with analyzing deals will put you in a strong position when you're ready to buy.Since you're open to other markets in the Southeast, I’d definitely recommend taking a look at Chattanooga.

How do others manage to create positive cash flow from MF properties with debt?

Being in Arlington, you’re in a prime area for finding multi-family units with strong rental demand, so you’re in a great position to make this work.We’re excited to have you here and look forward to hearing more about your journey!

However, I had to subordinate the sellers note to 2nd position (hint: set up that language in advance to streamline the process, if that's the direction you're going to go).Since the ARV was high enough, and the potential income would support the mortgage and expenses, it all worked out. 

People like to use HELOCS especially now, if they have a very low interest rate first position mortgage, in order to tap into that equity without losing the low interest.

Right now, the best offers around me are for some 1.3-4 million, that only generated around 100k per year gross, so there would be a high chance of not cash flowing, and paying money, especially with a commercial loan (these buildings have more than 4 units).I was thinking that although the rental itself does not generate money, I would be able to deduct the mortgage interest, and depreciation from my personal w2 income and would be net positive.

This creates a negative initial position.

What does a cash positive investment mean to you? 

I have built in the past and I do not understand how anyone can build a house for 250k that will last.As an agent I focus on high end relocation clients and many are positively surprised by the build quality compared to the south.