Whether the other party has a lawful right to deduct their attorneys from the payments depends entirely on the language in the particular agreement you signed. You should have an attorney review the contract and get an opinion whether the contract language allows them to do what they did. If they have taken liberties, a letter from an attorney may be enough to dispel of their notion that they are allowed to do it. On the business side of things, you may need to weigh the extent to which your future revenues depend on a good relationship with the other party, though it sounds like the relationship has already begun to go south.
This answer is not intended to establish an attorney/client relationship and is not intended to be relied upon for legal advice in your particular situation. You need more specific, detailed advice from an attorney who has the opportunity to read the contract and gather any additional facts that might affect the opinion.
Answered on Jan 22nd, 2013 at 10:17 PM