I must say that every person I’ve spoken to ( Jonathan, Abe, Tony) at Real Estate Skills team conducts themselves with integrity and provided excellent customer service.

@Joseph Lombard The HELOC is best described as personal short term financing.

Just as a reminder in addition to the interest rate, amortization schedule and fixed period of the loan, inquire about: 1) Prepayment Penalties (In case you want to refinance in a few years), 2) Possibility of Rehab Funding, 3) Reserve Requirements, 4) Personal Guarantees, 4) Rate Adjustments (i.e. at the 5 year mark) to understand other variables in the loan product that works best for your project.

I have good personal credit (~730-740), average-high personal debt (mortgage, student loans, vehicles,) and I am employed making $90k/year.

If you can't keep control of your personal finances, you are highly unlikely to succeed in real estate investing.

The fact that you state something cant be done shows your lack of effort to spend your customers wisely!   

I have to do a little more due diligence before I feel comfortable with sending them any of my personal info.

If you have cash, know that 99% of wholesalers will have low repair values and high ARVs that don't match the actual data or upkeep of the house.Also, ask if this is being daisy-chained, meaning are there other wholesalers or investors in the line between the person offering you the deal and the seller.

It looks more professional to have your own domain name but I have never chosen to not do business with someone using their personal email to conduct business.

I personally would approach this with a self assessment.