I wasn't really sure how it would pop up, but don't see a reason to risk things and complicate my cash-out.

This is still pretty complicated. 

That complicates enough I'd consult with an entity/asset protection pro.I don't hold residential assets in LLCs unless partners got involved. 

I am asking what you hope to achieve with this complicated setup?

I personally don't recommend bothering with an LLC until you have $1 Million in equity.Warning: I am not an attorney, and this can be a complicated topic.

I'm not a fan of complicated electronic locks because they have a high failure rate and are often very easy to hack.

One thing to think about is when doing heloc on primary if you want to refinance you need to get their signoff as well as your primary loan which could cause complications.  

Instead they go about it a** backwards and add more red tape and more complications costing the city and it's residents more money

I guess my main thought is that the MBD is more complicated and that ultimately you can only withdraw contributions.  

Things like this are why it's important to work with a professional who is well versed in real estate taxation because the "common/simple" strategies taught frequently like BRRR or house hacking actually get fairly complicated when it comes to handling it correctly.