Selling Detached Garage from Commercial Property

[Joe Chabala]

I recently purchased a building that has the 1st floor as a retail space and the 2nd floor as (2) apartments.  In the rear of the building there is a detached 4 car garage.  The tenant that is renting the garage currently is interested in purchasing the garage.

How would I go about dividing the property in order to sell the tenant the garage?

The income from the garage is $150/month, the other units bring in $1800 total.  The proceeds from the sale of the garage will accelerate my timeline to purchase another apartment complex.  I will miss the $150 cash flow, but would much rather be able to add another property to my portfolio.