My goals would be to increase monthly cash flow and have more access to the property's equity for things like Cap Ex, etc....Here's a blurb from a lender's website:"By combining banking functionality with home financing into one dynamic instrument, borrowers are able to save tens of thousands of dollars and years off their loan""Designed after popular programs around the world, the All In One First Lien HELOC is the nation’s first transactional offset type-mortgage program.Home financing and banking combined:Deposits lower your loan’s principalFunds remain available for expensesInterest is calculated on the average daily balanceThis lowers the monthly interest paymentsTens of thousands of dollars can be saved over the life of the loanMortgage freedom can be achieved in half the time or less

As for capital, I will be utilizing my HELOC for initial fund on first deal.

We bought it with a HELOC on my mom's primary residence for the first $40k, then hired a contractor for demolition and major renovations, did cosmetics ourselves and used more heloc money totaling $60,000. 1 year later we listed it on VRBO and AIRBNB and refinanced the $100000 into a fixed rate mortgage.

A Heloc on my primary residence was where I started, and I was able to use all my own money. 

Otherwise, HELOC is a great resource.

We do them, but they aren't cheap and your LTV will be lower that a HELOC on a primary residence.

No, I put 65,000 but its probably worth 140,000 I'm trying to get a HELOC to do some renovations, then rent it out in April.

I do have a HELOC for a worst case scenario--maybe this is also naive. 

A lot of the time, the HML 2nd secured by the high equity primary residence would end up getting paid off in short order with via a HELOC, so there'd have to be points in it upfront for the HML for it to make sense.

Hows is that going.. currently my tenants pay all the bills but I am wanting to get a HELOC on the duplex.