But since you have already taken bonus depreciation while it was an LTR, this may not even be a concern for you.There're other potential complications such as a different depreciation schedule, treatment of previously suspended losses, and so on.

.: Wondering if losses from passive rental income (I.e. long distance property managed by third party) could offset capital gains from stocks? 

Still, I think you'd find it difficult to find one that would be a good long-term investment unless you had another ~20-30 years to go, it's at least cash neutral, and you don't plan to hold it too long (to avoid too much investment loss and before you get to the point where it's unsellable because of too few years left); that's another way of saying that maybe it suits your cash needs in the near-term or is at least less of a pill to swallow than other options until you find something that's more of a sensible long-term play

We’re relocating to a bigger city to reboot the business, and I’d love to turn our loss into an investor’s gain.

This is because REPS reclassifies rental losses as non-passive, allowing them to fully offset active income.

I walked to the house and met a man who says he was cleaning out due to the loss of their mother in some few weeks back.The guy told me she is  left with 12 years mortgage on the property to pay the bank.

The more loss, the more suspended loss.

If your units meet the qualifications of no-fault eviction, I would start the termination process over (because may 25 was so recently I would not gamble and try to amend existing notice that may be found not to be compliant with ab1482).  

Regarding total potential loss, Umbrella is better.

Because flips are considered inventory (not capital assets), profits will be taxed as ordinary income rather than qualifying for long-term capital gains treatment.For tax filing:Report expenses like construction costs, permits, and interest as part of your cost of goods sold (COGS)—these won’t be deductible until the property is sold.Since no revenue is expected in 2024, your S-corp may show a loss, but that loss won’t reduce personal taxable income until the sale occurs.Each partner will receive a Schedule K-1 every year, including 2024 and beyond, as long as the S-corp remains active.Unlike an LLC, S-corp shareholders do not pay self-employment tax on their share of profits.