Memphis, TN Zoning Question

[Thomas Austell]

I have a property in Memphis, TN that is zoned as mixed-use (RW). It contains 1 office space and 3 residential units. I am currently marketing the office space but am concerned that the 3 residential units make it unappealing to serious potential commercial tenants. These residential units could also be very successful short-term rentals. 

I wanted to see if there was a legal way of converting the office to a short-term rental as well and just run 4 short-term rentals instead. I do not think that I can get zoning changed for the property. Is there some workaround that could still be legal but allow me to transition this to 4 short-term rentals?