I have to assume that your realtor listed it the Multiple Listing Network (MLS)?  

And if you’re ever looking for boots on the ground, I’ve got a great network of investor-savvy agents who specialize in the Austin area.I’m here if you want to talk specifics or need an extra pair of eyes on a deal you’re considering..

As explained earlier, it will be some variation of this: average daily balance times the monthly periodic rate (or some similar formula - check the terms of your HELOC) plus 1/120th or some similar fraction of the principal balance to arrive at the monthly payment (a.k.a. compound interest).Ask your CPA or other financial professional to review it with you.Also, talk to someone who fully understands the mortgage acceleration strategy.

One area I recognize I’m lacking in is networking.

I would keep doing what you're doing and network as much as you possibly can.

Projects give us visibility on my projectsMy CPA can easily access the reports for tax preparation.

Bigger Pockets is a great place for education and networking. 

He'll lend in markets where there's a network set-up that has proven to move investors through. 

I'm in a small town with nobody to really network with on a regular basis.

Networking with brokers, wholesalers, and property managers in your target markets can open doors to off-market opportunities.