About the Authors Mark Kerstein and Shamina Chang are attorneys at The Law Office of Mark A. Kerstein , based in Houston, Texas. They instruct and practice Iaido and Kendo at the Houston Kenshikan , as well as Cougar Kendo at the University of Houston. Membership Registration Checklist Before a new member starts practice, we recommend the following: Registration form with Waiver & Sexual Misconduct AUSKF Registration Background check Registration Form Here is a Sample Regis