A few months later, I received a notice to redeem letter from a 2019 tax lien holder.

Your cash flow will look great on paper, but sooner or later the house will need a new everything, which is usually 50k-70k. 

(Even if it feels like overkill now, the plan is to do a "lite version" of the system and build out later).Anyway, My question (for the crew here) is really  more about actual workflow.... i have my tools chosen, but despite what they all promise (efficiency) I feel like I'll be bounching from "use this to acquire a tenant", "use this to vet / quality / sign a tenant", "use this to communicate with a tenant"... 

This can be a great way to concentrate your equity in order to be able to make a later cash out refinance as powerful as possible. 

So, reviews now will translate to revenue potential later.

I gone to auctions where this is not the case and was notified later my bid did not meet the reserve price and rejected.

I'll preface by saying I'm not a tax expert, but just went through a cost segregation as a REPS and this was my view.The benefit from pulling out these items coupled with the bonus depreciation far outweighs any incrementally higher taxes in later years, by quite a large margin. 

I also thought of renters as people who are basically poor and can't buy a home. 15 years later I think that's funny.You can look up demographics, but I don't think it will give you the clarity you are looking for.

We still plan on a year 4 exit but since we will build later our exit occupancy level will be lower and thus our exit value will be lower.  

That’s why I wanted to use the equity and then only owe the $153k to lower the payment and refinance later.