Fire inspections on 40 buildings in a nine-week window, has anyone renegotiated the dates?

Annual inspections on 40-odd buildings for one REIT customer, all due inside a nine-week window because that's how the original contract was written.

We're burning drive time because the buildings are scattered and the due dates don't respect geography.

Has anyone gone back and renegotiated due dates to cluster by region? Did the customer go for it, and how did you frame it? I don't want to open a contract conversation and lose the account over route planning.