The only problem that I have seen arise is when the HELOC is close to maxed, it is like a credit card that is maxed.  

@Thomas HundtoftThey put a 2,500 hold on a credit card in order to bid.

Business card, small flyer of what you're offering/looking for.

I pull out my I buy houses card and say you guys don’t look like your from around here.

I called county assessor's office asking if they accept credit card to pay someone's else back payments.

I did most of the additions to my home with cash but had to use about 17k in credit card debt.

Some credit card companies go one step further for our vets and offer 4% interest on PRE-existing debt, while others yet (I think it's Citibank and Barclays issued cards) offer an eye popping 0% interest on pre-existing credit card debt. 

I’m working a full-time job that pays 50-60k a year (depending on commissions/bonuses), the only debt to my name is a recent auto loan for $13k, credit cards and my mortgage.

Would a good way to try and find owner finance deal would be ‘driving for dollars’ sending out post cards etc. things like that?

They pay a fee if they pay with a credit card.