I negotiate
Examples
Im a transactional lawyer; I negotiate all types of things, but with a particular focus in software licenses.
There seems to be an inclination among rock musicians to be very carefree with money, but I negotiate the best flight and hotel deals on our tours to maximise the band's income - I don't want too see too much taken off the top line.
I fight terrorism as if there was no peace process, and I negotiate the peace process as if there was no terrorism.