Things may have changed some regarding labor lawyers, since I left the legal support profession - and the actual facts of Mary Alice's case and her cause of action would definately make a difference (plus state laws differ) BUT, at least in my, 'right to work' state,
labor law attnys doing labor law plaintiff's cases virtually never did so "on contingency fee basis".
Here these types of cases were always handled on an hourly fee basis (lawyer billing), plus a sizeable retainer up front.
Mary Alice - one way to get decent access to interview prospective counsel is through your county or state Bar Association. Many have a "lawyer referral" type program, which can refer a person to participating attorneys for ~1/2 hr. consult and over-view of your case. This can be a feasible (affordable) way to both get a realistic case assessment and have contact with prospective attnys to determine which one or more you wouldd want to pay to represent you.
Martindale-Hubbel ('the big book of lawyers' - actually did used to be a collection of huge bound printed volumes ) has a website where you can site-search for attnys based on areas of practice, and may well still include lists of representative clients and good background info on the attnys who choose to be listed with MH.
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You, as in on your own, need to call a few attorneys and see if you have a feasible case. If you do, I hope you have your issue well documented.
No attorney will touch your case unless they think it's both winnable and profitable to them. If they do, they'll accept your case on a contingency basis. ...