If you want another layer of protection get an umbrella policy.You don't want to trigger the due on sale clause for a likely low interest mortgage.Also if you aren't operating your LLC 100% you likely only have a false sense of security. 

Congrats on pulling the trigger on this.

Just curious, what made you pull the trigger on the HELOC?

People selling "structure" somehow forget to mention yearly compliance costs.  

Quote from @Samantha Derman: Hi all, looking for advice before I pull the trigger on a HELOC on my own home.

I haven't pulled the trigger to put an offer on it yet. 

The more complicated your business structure becomes, the more problems it can actually cause such as when looking for lending options, getting the best interest rate, keeping clean accounting, filing taxes, opening bank accounts, getting credit cards, executing a 1031, making title insurance claims or even triggering a due on sale clause, etc. 

But IF the property in question is in compliance with all code, and provides a safe and secure environment, all problems are timely addressed and corrected, and the property is maintained on a professional level, then the investor who has a large capital investment in the property should be entitled to enforce any contracts providing him with the agreed to cash flow. 

Looking for some advice/guidance on whether or not to pull the trigger on a prospective duplex.

The compliance on these can be tricky, tread carefully or work with experienced funds.4) Death - Nothing is certain but death and taxes.