Say the unwelcome verdict
Including stop the project.
Because cancelling one requires somebody internal to say it, and nobody volunteers.
Projects rarely stop because someone decides to stop them. They continue because the cost of admitting a sunk investment feels higher than another quarter of spend, and because the person who would have to say it reports to the person who approved it. An outside assessment is valuable mainly because it can say the unsayable and then leave.
The second thing an outside view provides is the gap between two accounts of the same project. The status report says amber; the people doing the work describe something rather different. Neither group is lying — they are measuring different things — and the difference is usually where the real position lives.
And interim work needs an expiry date written at the start. An interim manager who becomes indispensable has failed at the job, however good the relationship. Documenting as you go and handing over on the agreed date is less profitable and the only version that leaves the organisation stronger.
Including stop the project.
No reselling, no commission.
Interim means interim.
A free first call, with an honest answer about whether you need one.