attorney lien and disputed fees In Chapter 13.

I filed a chapter 13 for the sole purpose of initiating an adversarial action against a government agency. the judge found in my favor on every issue - the government had, indeed, been attempting to collect a debt it was never owed. But the judge denied damages because my attorney did nothing to develop the damage claim, mistakenly thinking that the government is immune to affirmative awards, having completely misread the applicable statutes.

When I disputed the amount of his fees, he then filed a lien on the money I'd been paying into the Chapter 13 trust account. He, later, withdrew his representation.

Is his lien appropriate?