If you owe your attorney, it may make more sense to pay him a bulk sum now because he may then choose to forgive the remaining amount if that is the decision you two can mutually agree to do.  Otherwise, check your retainer agreement with your attorney about how monies are to be given to you from the trust account and if this is separate from your retainer account.  It should indicate how your monies are to be paid to you but generally speaking, your attorney cannot simply unilaterally decide to keep your money judgment if you didn't agree to such an arrangement to begin with.  If you are still concerned, consider contacting your state's bar and inquire if you need to file a complaint against your counsel.