Hi & thanks for using our service. I'll do my best to give you a complete & accurate answer. Please ask me to clarify anything you don't understand.
If you are an employee & Dallas is your "duty station", that would be your "tax home" so the cost of an apartment would not be a deductible travel expense. If you were an independent contractor and Georgia was your home, then that would also be your tax home and a different answer might result in terms of the apartment being a travel expense.
Just to make sure, the term of my employment is slightly less than one year. Does that make a difference?
Not in these circumstances as your base of operations has switched to Dallas; basically you said you are no longer employed in Georgia, so it is just like switching jobs; what happens after you complete your assignment?