As I understand (by reading articles online), Texas has strict laws in place that are not investor friendly around these.

I would prefer not to do that if possible, because I don't want to expose myself during this brief vulnerable period without protection, but I also don't want to break any laws or LLC shields if this process is not handled correctly.What are your thoughts?

I have started doing some research around BiggerPockets, looking into tax laws related to selling her house (121, 1031 exchange, etc.).

The lady in the Zoning office made it sound like as long as I didn't add that additional 220 outlet I wouldn't be breaking the zoning law.

I definitely understand the logic behind the law. 

Regulation S allows us to solicit anywhere outside the U.S. directly or via international agents who can also generally solicit - however some countries may have separate securities laws which may impact how or where they may promote. 

I know Missouri's laws regarding a tenant abandoning property, but this really doesn't seem to fit.

They are very strict when it comes to permits.

I have also seen LL with one meter bill tenants based on percentage - I guess I do that in one of mine too (3/1 house with 1/1 mother-in-law apartment: 3/1 pays 75% and I pay 1/1 25% and include internet for 3/1 if they cover 1/2 bill).

Each state has its own laws as well