A joint retainer is a retainer in which a lawyer or paralegal is asked to represent more than one client in a matter or transaction. In a joint retainer, licensees must remain loyal and devoted to all joint clients equally and, as a result, cannot prefer the interests of one over the other(s).
A retainer agreement is a long-term work-for-hire contract between a company and a client that retains ongoing services from you (as a consulting business) and provides you with a stable amount of payments.
The joint retainer will deal with confidential information acquired during the course of the litigation. The retainer typically will emphasize undivided client loyalty such that no information can be treated as confidential as between joint clients.
The retainer agreement does not bind you to your lawyer. You can terminate the client-attorney relationship at any time.
Agreement periods usually run up to five years, but initial retainer agreements are often reviewed and renewed annually—usually at the end of the financial year. Retainer hours are usually spent on recurring tasks that aren't major projects but are important to the client.
Traditional (Hawley) retainers have a piece of wire attached to plastic (or acrylic). Clear retainers (Essix) are also plastic but don't have any wires. Both are custom-made to fit your teeth.