Can a company demote an employee when they know they have a disability?

Yes, a company can demote an employee with a disability, but it must ensure that the decision is not based on the employee's disability and complies with laws such as the Americans with Disabilities Act (ADA). The company should demonstrate that the demotion is based on legitimate business reasons, such as performance issues or organizational changes, rather than discrimination. Additionally, the employer may be required to provide reasonable accommodations to help the employee succeed in their role.