Nobody on the internet can give you the perfect answer without being properly trained and licensed in the specialty, being in the practice for years, and knowing your whole situation and your personal goals.  

Here are the guidelines utilized by the IRS practice unit when they are conducting an audit of Section 179D studies.How does a company/taxpayer go about claiming this deduction?

Typical appraisal practice does not include verifying permits.

If a property manager like @Drew Sygit is seeing highly questionable business practices in their market, he is going to call it out, but his viewpoint is in regards to his market.  

I tell them to practice, 1 hour later everyone is kicking them out just as good.     

But the software will give you some structure based on best practices, and that can be a huge tool for learning the game, especially if you're self-managing.I've not tried avail so I'd genuinely love to hear how it goes for you.

What exactly does this mean and how can I practice these things?

Networking is always a great practice and you never know who you might meet there and what good information they have to share.

I wonder if the interest rate on the HELOC will be too high to make the monthly rental rate practical for a renter.

While this is a violation of the covenants of the deed of trust or mortgage instrument, and theoretically (if the note holder becomes aware) the note holder can accelerate (demand full payment) of the note, in practice this rarely happens.However, there are risks for both the buyer and seller in a subject to transaction.