After your interviews, review your notes and examine the strengths and weaknesses of each lawyer. There is no single important factor that will help you decide which lawyer to hire. In the end, you will have to decide which of these or other factors are the most important to you. After you choose a lawyer, ask the lawyer put the arrangement in writing.
Some states require a written agreement.
The writing can be in the form of a letter or a formal contract. It should spell out what services the lawyer will perform, outline or specify the fees and expenses, and address any other specific issues you and the lawyer agreed upon relating to the lawyer-client relationship. Your arrangement should specify what you will be charged for each of their services. It should also identify how you will be asked to pay legal fees and expenses during and at the end of the case. To know how money for a retainer will be spent and how much as been spent during the course of the case.