That waiting time will probably be shortened in the future.The winning bidder at the most recent auction has the right of first refusal to buy later years' liens at the same redemption rate. 

Have rehabbed and upgraded several times during its twenty yr rental history.

Your point of most real estate has appreciated over time is absolutely correct! 

Jasper / Pat AboukhaledTurning investment visions into REALITY in Phoenix, AZ - Ranked #1 for residential real estate growth and opportunity by PwC

The amount of time you have to give them changes if they've been there for a year or more, so it should depend on when you give them the notice, not when it takes effect.

First of all, congratulations on beginning your journey in real estate investing!

increase in equitydebt paydowndoing cash out refi to purchase multi-family Did you work with any real estate professionals (agents, lenders, etc.) that you'd recommend to others?

Unable to estimate appreciation potential because it’s brand new and no room to add on or make improvements, but over time I do think some appreciation due to prime location.

They want to charge this fee every time the lease renews not every time I have a new tenant.

I'm planning to invest 1 million on real estate however I have little knowledge on real estate investing.