Billboard on property

[Julia Amelyan]

I purchased a property that has a billboard sign, when I reached out to the company that owns the signs, they told me that there is a 20 year lease for the billboard and we are in the second half of the lease, I cannot get a new lease because the lease stays with the land - is there someone that has experience in this? I definitely think that the rate has gone up since 15 years ago and I can rent the location for more income. Thanks in advance!