The phrase "lawsuit filing" refers to the process of submitting a legal case or complaint to a court. It means taking official action to start a lawsuit against someone or an organization. Full definition
But the judge stopped short of making a permanent decision about the city's plan, which is being challenged in lawsuit filed by the teacher's union. (dnainfo.com)
There already is a class action lawsuit filed in federal court that may be able sort out what happened. (nydailynews.com)
If they are found guilty of the allegations, there should be a class action lawsuit filed against them. (studentloans.net)