I am working on a deal where there is a hurdle for a seller's note. The seller would like the hurdle to be based on revenue. For example, some of the seller's note payment would not be due if the revenue for the company fell below $3,000,000.

The bank needs the hurdle to be based on cash flow. This is because the margin has fluctuated over the last several years and to meet DSCR requirements for the lowest-margin year, the business would need to hit revenue targets it has never hit before.

The seller is understandably concerned that cash flow can be manipulated by increasing expenses. Does anyone have examples of guardrails that can help assuage the seller's concerns?