Section 1250 Gain Recapture

[ANDREA LOGAN]

I have a potential sale in 2018 of commercial rental real estate consisting of a building and land.  The date of acquisition of the building and land was 3/1/1985.  The building is fully depreciated, and I am confused on 1250 gain recapture.  

I have read an article written by Michael Plaks that was extremely helpful and just need a little clarification as to my understanding on this topic.

Thank you in advance!