The property is zoned for an additional unit, and I’m considering adding a 900 sq. ft.

I recently converted a detached garage to a separate dwelling (ADU) that had its own permit and CO, and took action going in to make sure that it got considered both separately and in addition to the main house on the same lot.

I am trying to figure out if I can make the LLC that I created in TX the parent LLC for the property in NC (thinking about making an additional LLC for this property).

ODC has been "infilling" these properties by adding additional MHs, to increase revenue, therefore NOI, and valuation. 

The questions that you have asked could very well be a few hours' worth of conversations, and in my opinion, there are additional facts necessary to help advise on the situation, as well as some questions that it does not seem that you have asked and probably should be asking. 

That’s usually where I see developers either unlock extra protection or unknowingly leave gaps.

Also, I am in the phase of beta testing, so it would be at no additional cost to you :)I got a solution that we kind of built in-house and using it.

Here are some additional FAQs on cost segregation including prices that you may find helpful. https://www.biggerpockets.com/forums/51/topics/1113749-cost-...

Dan is right, OOS is hard and you will face an additional cost burden local investors don't have.

So if we were to build a home and list it for sale then we would only be taxed like regular income and not anything additional?