Know any fees and costs before signing anything. Remember, it's your job to ask questions in regard to the costs. Ask every question you can think of, and look through every document you are given. Your lawyer is not responsible for you being quick on the draw when it comes to signing official paperwork.
The Internet can help you find a lawyer, and you may find that using a service is the right choice for you. It's up to you do research them to see if they are good enough for you to hire them.