Pursuant to OCGA 20-2-942(a)(4) a veteran teacher (4 years with same school district) can regain tenure rights after accepting a second consecutive contract with a new school district. It appears as if you are not "tenured" with Marietta City Schools, which means they can non-renew your contract for any reason (or no reason at all). It may be best to resign before you are non-renewed. Contact an education law attorney for more information/advice.
Pursuant to OCGA 20-2-942(a)(4) a veteran teacher (4 years with same school district) can regain tenure rights after accepting a second consecutive contract with a new school district. It appears as if you are not "tenured" with Marietta City Schools, which means they can non-renew your contract for any reason (or no reason at all). It may be best to resign before you are non-renewed. Contact an education law attorney for more information/advice.