The Lord Marshall's stare goes deathly cold. "You threaten me? While I am aware of our pact with your crown, you would do well not to cause offense while guests of my city. And… considering you find yourselves with time on your hands, you will help me."
The pact allows for no compulsion of contract with a Free Company, only The Raven Spire can do that. However, if the Lord Marshall of Cistercia chooses to stand against you it will cause serious problems for your goals here. Not seeing a way out of this without endangering your purpose, you assent.