Can I refuse to work with a legal or insurance firm that has not paid me for previous work?

It is important to ensure the insurance company or legal firm is aware of any fee and agrees to pay the fee before you do the work. If you have a contract with them for work and they have not paid you for that work, you can refuse to do additional work until payment is received. You can also request pre-payment or a down-payment for new work being requested.

You may want to conduct all communications in writing to ensure a paper trail.