An expert forger couldn’t be trusted not to be bought or respond to the prospect of gain for “outing” BO.
I guess, though, they could have hired one, then offed him. I’m surprised they didn’t do just that.
Ok lets think that through...
How would the WH find the *one* forger they want, without raising any suspicion?
Then, assuming they find a true expert, how do they keep perfect confidence there is no trace between the forger and the WH. (even after the disappearance) A professional forger has got to have a some experience in staying alive, and not getting caught.
Seems to me that it would be too risky, and worth it *only* if there was not someone adequate that could be controlled/trusted.