I have decided to award the project management role to my builder, up to watertight stage. He is used to doing this (and providing me some PM services for the remaining stages), but has presented me with a standard JCT contract that includes the role of a Contracts Manager. As there is no intention to hire a separate Contracts Manager, the role, which seems to be to mediate and judge whether work is fit for payment, will fall to me. I’d rather it fell to me than the builder, and he is comfortable with the protection afforded by the industry (legal/ombudsman authorities), but does this arrangement add significant risk that I should be wary of?