Originally a 30 year lease, theres about 20 years left to an advertising agency. 

There are a few things on this list:1) Binghamton does not appreciate.

For payroll, ask the seller for a staffing matrix, this lists each position working at the property and their salary. 

The information contained in this post is not to be relied upon.

I think you need to reposition how you are talking about this equity.

This is a great question! 

You can do this with a simple, one-page addendum, or even a written statement added to the existing lease and signed by you and the tenant.Example:This lease agreement is hereby amended to reflect the change in ownership of the rental property located at 123 Straight Street, Cody, WY 82414.

I am to surprised to hear that this is CA.

Hopefully this is useful for your purposes.

I think their general stance is going to be to go with whichever comparable property has the greatest degree of similarity in terms of (probably, in this order): location, age built, quality of construction/current condition, and square footage.