Dallas and Fort Worth deserve separate budgets, not one Metroplex campaign
A single campaign spanning six counties reports one blended cost that describes no market you actually operate in.
Dallas and Fort Worth are separate cities with separate downtowns, separate occupier bases and an hour of freeway between them. Inside the same metro you also have Collin, Denton, Rockwall and Ellis counties, each with its own inventory and its own pricing.
Build geographic targets around where your brokers actually go. Presence targeting rather than interest targeting, so you are paying for people in or searching about your ground, not for someone in another state idly reading.
Split reporting by county from day one. You will find that a Tarrant County industrial click and a Collin County office click behave nothing alike, and you cannot see that inside one line item.
Resist the urge to claim the whole Metroplex in the ad copy. Overstating reach buys inquiries you have to hand to someone else, and hand-offs are where relationships and margin both disappear.