We do have about $200k HELOC available from our former primary-turned-rental home, but that's only going to get us almost 1/2 way there.

I have no debt other than my mortgage on my primary and a mortgage on my 1 rental.

I am wanting to expand my portfolio and buy a multifamily rental here in Austin, Nashville or any other market that makes sense to grow with.

For rental purposes, cash flow. or stick to one at a time? 

This county has big universities, colleges, and hospitals, and has cash flow for long-term/ mid-term rentals.

We intend to keep the SFR as a rental.

Rentals have also shot up like crazy so I anticipate much more as the years go.I have been studying BRRRR and leveraging debt but this case is different.Would it be in my best interest to pay back the loan asap or just make the monthly payments and start saving my extra cash for my first BRRRR in the states. 

I’m 41YO and my wife and I bought our first rental home at 38.

Any good formats/tools out there that are good for analyzing the numbers on a potential single family home rental?

Some takeaways from him:Treasury Regulations section 1.280A-2(i)(3) gives a couple of ways you can proportion the rental portion of a property--my accountant used square footage.Under section 280A of the tax code, common areas that you also use are considered part of your personal space and unfortunately aren’t counted as part of the rental space in the proportion calculation.