Thank you for the information and your question. You correctly noted that, unless your employer has a duty to pay severance under a contract or company policy, they do not have to offer severance to employees who choose not to transfer
with them to Atlanta. So, any severance is more than the law requires. If they were shutting down the company completely or not offering transfers, then they would probably be covered under the Federal law called WARN. That does require either 90 days notice or 90 day severance if no notice in complete closure situations.
But in any event, working virtually, unless written in a contract for a specific term is not a guaranteed term of employment. So, the employer has a right to change that term if they choose and can require a relocation, even if you were to remain virtual.
So, although I can't tell you what to do, I don't see any obvious legal issues that would make what your employer is doing unlawful in any way. In addition, they are providing you with more rights than the law requires. So, it comes down to whether or not you want to move knowing that you might not receive a raise, and also keeping in mind that your employer could let you go for any, or no, reason after you moved. Or, whether you are ready and willing to stay where you are, take the severance pay
, and look for new opportunities in your area.
If you have any specific follow up questions, I am more than willing to try to assist you further. The question is always open for follow up questions, even after you leave a rating.