The most valuable click is a board that has just fired its manager
Transition queries are a thin slice of the volume and most of the money, and they are worth building the account around.
Sort the query space into three families before you write a single ad. Transition intent, where somebody is actively replacing a manager or collecting proposals. Category research, where a new board is learning what management costs. And everything else, which is noise wearing your keywords.
Give the transition family its own campaign, its own budget floor, its own landing page and its own phone treatment. These searches are scarce, so protect them from being starved by a broad campaign spending faster.
Write the ad copy to the moment. A board mid transition wants to know you can take over a building on a defined date, handle the handover of records, and present to owners. It does not want a list of services.
Volume in that family will look uncomfortably small. That is correct. Pair it with broader coverage you can throttle, and accept that most of the budget should sit where most of the intent is, not where most of the impressions are.