First of all lawyer's expenses are always payable. That is filing Court Actions, Filing Registrations, photocopying, letter writing, telephone calls they are always billed by the minute. Lawyers keeps what a called dockets and anytime you speak to them they put down the amoutn of time spent on the phone with you or with anyone else with respect to your case. So besides the actuall expenditures of filings you also have the lawyer's time added to it. Also if they have to get others involved their time also gets added to it.
So basically what I'm saying is the cost of the filings and however much time is spent is something that no one can count on because it depends how far and how deep you want to take this action.