Not a legal issue but a financing one. For commercial landlords it’s often better to let a building sit empty at a high posted rent than to lower the rent, since the building value (for financing purposes) is determined by the posted rent not the actual revenue, and lowering the rent may put the building “underwater,” hurting both the landlord and the bank.

https://www.strongtowns.org/journal/2017/11/27/the-paradox-o...