Your employer can only take deductions from your pay in certain specific circumstances - check with the Wage and Hour division of your state Department of Labor for the specifics in your state.
If you are an exempt employee, you must be paid your full salary every week in which you work with the following exceptions:
Covered employees must be paid one and a half times the regular rate of pay for the hours over a standard work week of 40. However, if you took it upon yourself to work unauthorized overtime, you may be subject to discipline for doing so. If you believe you're entitled to overtime pay and the employer isn't paying you, consider contacting your state's Department of Labor.
But pay differentiation can't be based on what's a called a "protected characteristic." For example, if you and someone else are performing exactly the same job and he's getting paid more than you because he's male and you're female, that would be illegal.
Each state has set requirements relating to the payment of commissions under these circumstances, whether immediately or after the client pays the former employer. Check with your state's Department of Labor for the specifics.