Bid on clear height and square footage, not on "commercial real estate"
The queries worth full bid describe a requirement, and requirements are written in numbers and building features.
A tenant with a real distribution need does not search for commercial real estate. They search for a size band, a loading configuration, a clear height, a submarket, sometimes a highway. Those phrases are low volume and high intent, which is exactly the trade a brokerage wants.
Build the account around those shapes. One group per asset class and size band, ad copy that repeats the specification back, and a landing page holding matching availability rather than the firm overview.
Head terms have a place, but a small one. Run them on exact match, cap them, and judge them separately. They are prospecting, not capture, and their job is to feed remarketing rather than to produce a signed requirement this week.
Read the search terms report weekly for the first month, then every two weeks. In a market this thin, one loose match type can spend a month's budget on queries you would never have bought.