Not an attorney but former HR Manager.
Do you have a contract?
Absent a contract there's not much you can do. Quarterly travel to the home office doesn't substantially change the job.
You say that you have anxiety about leaving your family. Do you have a documented history of anxiety? If so, you might be able to use that to avoid travel. It would be considered a reasonable accommodation to have you join in meetings via telephone or zoom.
Not an attorney but former HR Manager.
Do you have a contract?
Absent a contract there's not much you can do. Quarterly travel to the home office doesn't substantially change the job.
You say that you have anxiety about leaving your family. Do you have a documented history of anxiety? If so, you might be able to use that to avoid travel. It would be considered a reasonable accommodation to have you join in meetings via telephone or zoom.