HELOC or Refinance, which to choose?

[Mitzmichael Sumilang]

I'm trying to research the best way to go about this. I went on lendingtree.com to get some refinance quotes, and now my phone won't stop ringing. My question to you fine folks is, what is the pros and cons of going with a Home Equity Line of Credit as opposed to Refinancing my investment property? I'm looking to purchase a multi family right now and use an FHA loan to house hack the property and live in one of the units. I'll live in the property for a year then move onto the next property with another FHA loan and try to build my personal portfolio. It's my understanding that a refinance will have considerably more closing costs than a HELOC, but a HELOC will have a higher rate. Just trying to get a better understanding of which route would be best.