The biggest help I have had so far in my investing journey has been a solid W2 income to fund my investments and make me look good to bankers and let me access large credit lines.

I would talk to a couple local bankers to understand your options.

The banker is not driving by your place spying on you, though.

I buy lists, door knock, have bird doggers, take referrals, post signs, network non stop, use facebook, door hangers, talk to postal workers, talk to contractors, talk to neighborhood kids, skip trace properties, talk to lawyers, talk to bankers, etc.  

Negotiate with your banker if you have significant accounts.  

So bankers often don’t like that since you could just walk away if something goes wrong.

Furthermore, some of these same owners prefer doing business the old fashioned way (without bankers / real estate brokers breathing down their neck and inundating them with paperwork).

The banker will run if she sees you coming into the bank.  

Go to banker for bank loans when applicable4.

Hey Michael,Skip the HELOC, go to a business banker, and get a commercial line of credit collateralized against then properties you've mentioned.