Do you say she offices out of Lakewood?
You would use the verb "works".
The statement could be phrased as "works in" or "works out of". For someone who typically works on site and rarely, if ever, travels for work, "works in" would be the more common phrasing. "Works out of" would imply that the office is more of a base of operations and that the person often is traveling to other locations as a part of their job.