But BTW, there are no redemption periods for foreclosure or tax deed auctions, after the auction.  

I have an option with a local bank but they want 25% down (won't allow a bridge loan to brrrr my money out without a 6-12 mo seasoning period) the rates are much higher than freddie/fannie loans (5%), and I believe they will only do a 20 year amortization.  

Do they require you to stay in the house for a certain period of time this furthering your progress after The HELOC is pulled, or can you move out instantly after the HELOC is pulled? 

Keep the closing period short and the contract very very clean.

It is not quick to evict in ca so when they don’t pay and stay for longer periods you still have to keep the place habitable and they just may run up the utilities even more if they are mad they are getting booted out.  

Kind of like when you find something at Walmart marked "professional grade", usually it's not.Figuring out rental prices is an art, not something a computer can do, period. 

The first buyer's redemption period should expire the end of March 2021 if I understand correctly.My thoughts ...I can buy out the first tax lien holder before the end of their redemption period.

Or maybe find a partner who would buy with you and then you can structure an agreement where you buy that partner out over a specified period of time, with periodic payments or something agreeable to both of you? 

Vacancy rates are down below 2% and are continuing to provide investors with great returns over long periods of time.

That's nothing like the courthouse here. 10 day upset period, and the lawyer does their best to notify and clear all the existing liens.