How Long Must I Hold a Job for an Employee on Medical Leave?
If your company has more than 15 full-time employees, you should adhere to the Americans with Disabilities Act and its guidelines. If your company has more than 50 employees, you are subject to the Family Medical and Leave Act, as well and are obliged to follow those regulations.
If you are not at the size to have to adhere to the ADA or the FMLA, you can simply eliminate a job that no longer needs to be done and inform the "employee" (who refuses to communicate with you, evidently) via certified mail to his or her last known address that his or her job has been eliminated. In some cases, you could do this regardless of the size of the company. But it would be wise, if you are subject to ADA or FMLA, to check to see if you had inadvertently violated any of those regulations, and, if so, make corrections to your processes.</p>