can a landlord just tell you you're evicted? How long will I have before I have to move out if an eviction notice is mailed? Can I ask for an extension on an eviction? Is it a 7 day grace after the due date (by law)?
If you're talking about your residence (house/apartment/condo) then the landlord is not allowed to evict you without going to court. You're entitled to a court hearing before being evicted. The Landlord must receive a court order, and utilize the sheriff to come out, to most correctly evict you. The landlord is not entitled to harass or scare you into leaving sooner. Some of this doesn't apply if you're talking about a commercial/business lease.
You should consult with a local attorney in Macon, and allow them to review your circumstances and your lease for more specific information regarding evictions.