Onto 2nd Property - Best HELOC use?

[Joe A.]

Greetings BP community!

This is my first post, so go easy on me :)

I recently purchased my first rental property. I did this the traditional route; tapped into savings for down payment and got a 30 year fixed mortgage. 

Now I'm looking for my next one so I recently took out a HELOC on my primary residence for $120k.

My question is to how best use the HELOC to obtain more rentals. I'm looking for something repeatable so I can scale.

What I arrived at is using the HELOC as a source of down payments, which I figure will eventually run out - OR - I could BRRR. The only problem with BRRR is that my HELOC balance ($120k) doesn't buy much in my area (Boston).

I’m at a bit of a strategical crossroad and looking for guidance. Or maybe I’m missing something altogether. Thank you.