Both landlords and commercial tenants can use cease and desist letters to invoke and enforce their contractual rights in a lease dispute. These letters are often used as the first salvo in real estate litigation, and aim to enforce the rental agreement without taking the case to court.
For example, property owners can invoke their landlord rights under the lease and demand that the commercial tenant cease its attempts to assign or sublet the space. Tenants, meanwhile, may demand that the landlord stop renovation projects that are harming their business.