Can anyone help out by telling me which states sell these TLC.Also are there any investors who would like to partner with me on the purchase of TAX DEED CERTIFICATES - subsequently to sell or hold the properties for rental?

It’s not fun for anybody, but more than likely the same issue will keep coming up for every subsequent potential buyer.

Any improvements that you make, other than something like fix a leaky roof, can not be recovered, if you subsequently lose the property back to the former owner or the former owners heirs.I've seen properties with multiple tax sales in their chain of title, ALL of the tax sales need to be cleared, not just the most recent one.Many counties even for judicial sales only do one owner searches instead of full title searches so they can save money of searches. 

I appreciate your thread @Dan T and your subsequent ones as well.

Proceeds from the sale were put into reserves and subsequently mostly spent on needed concrete parking lot replacement work, and we haven't budgeted for the tax payment we're being asked to pay. 

I listed the property for rent and had a viewing and subsequent application to rent the next day at full asking price, providing a 30% buffer over PITI obligations to account for all expenses.

Subsequently I was a Series 7 stock broker on Wall St. for almost a decade.

Let me know if I should move them outI would like to request the comment of experienced RE members on the 3 properties so that I know what to look out for in subsequent opportunities.

Either way, the new listing of the property and subsequent lease with the new tenant can be whatever rate you want and that the tenant will agree too (unless there's some local law or code capping that).Not a lawyer or PM.

In that scenario, the interest savings COULDN'T POSSIBLY come from savings on subsequent payments, because you don't have any.