IF part of her job were being a server (e.g. waitress, bartender) as as a result, she earned tips, then it would be legal to pay her less than minimum wage. The wage and hour laws allow an employer a  "tip credit" when hospitality industry employees earn tips. Basically, if her hourly wage plus her tips brings her over minimum wage  (for example, between wages and tips she earns at least $290 for a 40 hour week), that would be legal.But if, as you indicate, she is non-tipped position, then she must be paid minimum wage (at least $7.25 per hour). Also, whether she earns tips or not, when she works more than 40 hours in work week, she must be paid overtime (time-and-a-half) for all  hours past 40.If she is not being paid as much as she should be paid, she should have a legal cause of action. She could file a complaint with the state department of labor, or she could sue. If she sues, she could potentially recover all back wages she should have been paid; in many circumstances, she'd be entitled to additional compensation as well--e.g. double back wages, attorney's fees. It would be worthwhile for her to meet with an employment law attorney to discuss her options in detail.