Be receptive to advice or directions from them, have an observer with you at all meetings, confirm everything in writing. Ensure all meetings are formal with an agenda, be wary of going to court with Legal Aid, and put anything you wish the court to hear in affidavit format, do not provide opportunities for them to develop their own agenda, or write for the audience. Seek their file notes of any meetings, and politely via email rectify any errors.
It is essential for record keeping / evidence, any future issues that may arise. As soon as any matter goes to Court, litigation is adversarial, ethics and the law are not the same. Treat them with respect at all times, but do not become a casualty of not recognising the legal process. Unfortunately, there are some real bad operators in Child Protection, and sadly not enough that take pride in their work, are authentic, and ethical.
Good luck.