The trust accounting handbook is a practical guide created to assist attorneys to comply with recordkeeping standards for client trust accounts. Consulting the State Bar's Handbook on Client Trust Accounting and relevant rules is strongly advised.Users will find practical instructions for compliance with the State Bar of California's regulations. Get Client Trust Handbook Form. If you have questions about setting up or managing your trust account call the Trust Account Helpline at 602.340. If the client answered no, continue to Step 4. 4. Fill out the client's personal information, including name, date of birth, and A-number. 5. A.The Lawyer Assistance Program is a program of the New York State Bar Association established to help attorneys, judges, and law. Get free legal advice and find a free or lowcost lawyer. Protecting Confidential.