Legal Question in Business Law in Maryland

It all depends. Maryland law imposes strict requirements for paying employees their wages while true independent contractors do not receive wages. Instead, payments should be governed by the terms of their contract. (In some cases, an employee may be improperly classified as an "independent contractor") Assuming your question involves a true independent contractor, if the business is refusing to honor the terms of its contract, the contractor might explore filing suit for breach of contract. It may be that the contract does not call for "back end" payments after service terminates.

As with any legal issue, you are encouraged to seek legal advice. While I hope the above general information helps, it does not substitute for independent legal advice.