If the CA FTB contests your position, you'll need a lot more than that in court as the burden of proof is on you and your advisors, not the CA FTB.A foreign LLC (as it relates to CA) that has a manager physically located in California is indeed doing business in CA as that is both the general definition and the definition adopted by the CA courts of "commercially domiciled in CA".  

If you're looking at working with a specific set of criteria as far as physical property details go, the MLS is going to be the best source. 

I physically delivered a 30 notice to end the lease for two tenants because their apartments need a complete renovation.

I've played with stocks and crypto and still hold both, I also love physical Gold and Silver Bullion (not really an 'investment' in the regular use of the word)Real estate gets me pretty excited and I've been learning about it loosely for the last few months.

I will not lie I have spent several sleepless nights recently analyzing deals in different states to try and get something going it has been taxing physically and emotionally with lack of sleep and nothing really going my way. 

I'm not familiar with Texas laws, but you might only be able to transfer a 1/2 interest in the whole (as opposed to 1/2 of the physical property). 

I'd (physical) mail and email them now that you'll be making this change in 30 (or 60) days and then charge them an additional $25 for tenants who still insist on sending checks.

We have a HELOC that we may have to access.In order to pre-qualify for a mortgage and showing available funds, should we exercise the HELOC and get the cash in our bank account before pre-qualification, or is the availability of the HELOC enough to show the funds are accessible?

I personally would rather have the physical asset that builds equity but is seems more of a gamble to bank on that with a low or negative ROI.

For example, when performing due diligence, it needs to have title check, physical/ financial/ legal inspections, appraisal, paperwork, constant communications with the seller and the list goes forever.