This is an expensive auction for structural reasons
High matter values and a limited pool of searchers produce click prices that alarm anybody arriving from another industry.
A retained family law matter can be worth more than most home services jobs by a wide margin, and there is no shortage of firms who have worked that out. The bidding reflects it.
Demand is also inelastic and finite. Advertising does not create divorces, so the pool of people searching in a market is what it is, and everybody is competing for the same set.
That means benchmarks from general marketing advice are useless here and will make a functioning account look broken. The number that matters is cost per retained matter, not cost per click or even cost per inquiry.
It also means small budgets often cannot buy a readable signal. A budget producing three inquiries a month will take a year to tell you anything, and what it tells you will mostly be noise.
The realistic posture is to compete narrowly rather than broadly. Specific situations, specific matter types and the terms where intent is unambiguous, rather than the head terms every firm bids on.