Heloc or Cash for my sitiuation! Seeking advice..

[Vince Bonhaus]

Hello BP!! You folks are amazing, this is my first post and seeking opinions so lets see how it goes.

I'm in the process of buying an 8 unit building (split 4 residential/ 4 commercial). We are under contract for $320k, down payment $64k. I will be a partner owning 40% so I figure will need around $28k for dp/closing costs. I am trying decide if I should move more on my HELOC or use cash.

Here is my situation:

Currently own 1 single family and 1 duplex, along with my primary residence. I used a HELOC for the down pmt on my single family which stands at $21k. My current cash position is $150k. I can get out another $18k on my HELOC.

Should I use the $18k from my HELOC (4% interest) and $10k in cash for the dp/closing costs, or should I use 100% cash?

Thanks!