All cases are messy. That's the nature of law suits (and humans). As in a dog with fleas eg not very good.
If the best you can come up with is an action in equity generally speaking you are grasping at straws. Your mileage may vary.
If the only cause of action is unjust enrichment it is a dog of a case ( unless you have done something really dumb). Your lawyer should be asking for security for costs straight off the bat.
And get your lease contract cleaned up its not good enough.
