It is not on the market but I have an investor who is interested in purchasing it. 

With the economy and market as they are, should I continue aggressively paying down the HELOC to potentially borrow against again or should I just pay the Interest Only (IO) payments and seek other funding at the current day higher interest rates?

New constructions in the neighborhood are selling for a significant amount above construction costs (double or more the market value of the land).  

Dba is typically for marketing purposes or if you are in another state and that name is already issued

At Neu Real Estate Group, we specialize in vertical development, particularly new build duplexes in the Indianapolis market.

This would significantly help my ability to afford the market from a house hack standpoint, but I want to understand what those tax advantages are renting out my basement as a business rental.

I'm still not following what you're saying about where the list service obtains the "current market value" of the home.

This new property is roughly 1,600 sqft, with 3 beds and 2 baths.We see this as a unique opportunity, especially considering how rare it is to find this price for new construction in the California market.

We are a small shop in the Philly market and we try to stay in our lane. 

I think you need to start looking at other markets to buy assets in, or look to buy and sell assets in NJ for equity.Gino