The honest first question is whether the volume exists at all
Search demand in a commercial submarket can be low enough that a search account cannot spend meaningfully, and that is worth establishing before building one.
Terms for a specific product type in a specific submarket may see very little traffic in a month. Broad terms have volume and are mostly the wrong people, including students, job seekers and residential searchers.
An account that cannot spend its budget is not a failure of management. It is a signal about the channel, and it should change the plan rather than prompt a widening of targeting until the money goes somewhere.
The widening is the trap. Broadening keywords to spend a budget in this industry reliably produces clicks from people who cannot transact, and then a report showing activity and no pipeline.
Checking this properly takes an afternoon. Look at what the actual terms produce in your markets before committing to a channel, and be prepared for the answer to be that search is a small part of the mix.
Where volume is genuinely there, it is usually in specific product and submarket combinations rather than in the terms a firm would instinctively buy.