In a metro this wide, the site has to sell a process, not an office
A prospective client in Denton County is not evaluating your lobby, they are working out whether hiring you means losing a workday.
Show the process on the page. First conversation, what documents get collected and how, how the retainer is signed, how updates arrive. Four or five steps, in plain language, with no promises about outcomes or timing.
Say explicitly that consultations can be done by video and that documents can be sent securely. Firms that offer it quietly still lose the client who assumed otherwise.
Where you do have offices, name them and say which counties each one serves. Someone in Fort Worth reading about a Dallas address needs to know within one sentence whether the drive is part of the deal.
The office photo still earns its place. It proves the firm exists at a fixed address, which matters to readers who have been burned by people operating out of a car.