What's in a retainer? Your rights and responsibilities. Your client's rights and responsibilities. Fee structures. Billing details for expenses. Malpractice insurance details or disclaimers. Limits on service. A termination plan. And, of course, state-mandated legal argle-bargle.
We don't care about your client -- that's your job. We care about you. And contracts are usually interpreted against the drafter, especially when one party is a lawyer. What do you need to include to cover your rear?