Upset Tax sale in PA Pennsylvania Odd situation . Any experts?

[Ray Slack]

So, I have a bought a few Upset Tax properties over the years and most of  are "Clean" type tax sale purchases. I have an odd one that I had some questions about. 

In pa you pay taxes on land and homes and sometimes a separate tax on structures that sit on or attach to the land.  Such as mobile homes.  

So, I am looking at an operating Cell phone tower that is going to tax sale. The issue is that it's just the tower and the building not the land and this is an upset sale.  So, I'm buying just the tower. 

.  I'm thinking I can sell it back to the prior owner but have a few questions.

1. I'm assuming the prior owner would still have to honor their lease with the land owner even if they don't own the tower any longer. 

2. There are other Cell companies antenna on the tower would I then by entitled to those lease payments since I would be the new owner of the tower? 

3. Worst Case I assume I could disassemble the tower and sell it? Even for scrap to recoup some of my gamble $. 

I know this is a bit risky since I don't own the land but figure since the cost of a putting up a new tower is $200k +/-  it would make sense for them to pay to buy back their existing one for a fraction of that cost.