However I am wondering if I can do cost segregation for all these properties for 2023 taxes since I owe quite a bit of taxes due to high W2 income.  

Legally, in Alabama how long after missed payment can I do a pay or quit notice? 

The sunk cost fallacy occurs when we feel that we have invested too much to quit.

It's quite a drive from Miami but you are more than welcome to attend.

I would disagree with number 2 - in this environment, heavy rate buydowns are a common tool in the toolkit for lenders and borrowers to make deals work and are in no way indicative of "not being well-capitalized"That’s a fair point in regards to doing a buy down, we see that quite often but we roll the buy down into the loan so those aren’t paid at closing, thus not costing the borrower funds out of pocket at the time of purchase or refinance. 

While yes they spent time on something they were unsuccessful and still got paid, while me as the owner is out thousands of dollars due to tenant not paying rent and causing quite a bit of damage.  

However the housing shortage where people want to live will continue for quite a few more years minimum.  

I understand that state tax and regulatory conditions can vary quite a bit. 

There are quite a few posts that do cover this, but my personal method is using AirDNA (paid veersion) analysis and then double check the results using the enemy method. 

With the lower LTVs offered by senior lenders these days, it may be tempting to look at preferred equity and it may make sense since technically it is cheaper than LP equity, but also keep in mind they have a higher liquidation preference (obviously) but will often want all the cashflow (or a majority of it) to come to them before the LP investors and will also want large reserves, so make sure you model out the cashflows and understand the end-to-end deal with the preferred equity investors.We have some institutional investors with whom we did a combination of a pref and JV deal and it worked quite well for everyone including them and the LP investors.