Our Staff


Margaret A. Costello, LLP

Margaret (“Peggy”) Costello is a psychologist (LLP) with more than 30 years of experience in the field of behavioral and cognitive psychology. An honors graduate of Penn State University, Ms. Costello holds master’s degrees in Rehabilitation from Southern Illinois University and in Clinical Psychology from the University of Michigan. She has worked in various settings, including rehabilitation facilities, private clinics and the Michigan prison system. In addition to her training and experience in psychology, Ms. Costello is an attorney, and has practiced law for 25 years. She currently is a law professor at the University of Detroit Mercy School of Law, where she was instrumental in establishing the nationally recognized Veterans Law Clinic.

Pat Kearney, M.A

I graduated from the University of Detroit Mercy with a Masters of Art in Addiction Counseling. I have a Bachelor of Science Degree, also from University of Detroit Mercy, in Addiction Studies. I have worked closely with the criminal justice system for the past 19 years. When I first started out I worked with court referred clients in an Outpatient Clinic. I have been able to diversify and worked in the prison system, where I started working with women in prison, and transferred to the RTP Program for 3 years. I Co-facilitated Domestic Violence and Substance Abuse Groups at Dickerson Facility in Hamtramck. I also facilitated a court referred Domestic Violence Group for 4 years. I have worked in Outpatient mental health and substance abuse clinics. I currently facilitate a Women’s Specialty Group for women in recovery from substance abuse at an Outpatient facility. I have been with Advanced Behavioral Health for the past 5 years and have facilitated groups that are focused on raising awareness and insight into the specific issues related to Substance Abuse, Retail Fraud and Anger Management.

Robert Warmack III, MA, LPC, CRC, SCL

Robert Warmack III is a graduate of Wayne State University earning a Masters of Arts Degree with a Major in Rehabilitation Counseling.  He is currently a Licensed Professional Counselor (LPC) and Nationally Certified Rehabilitation Counselor (CRC). He’s an Adjunct Professor at Spring Arbor University in the Masters of Counseling Program since 2008. He has experience in substance abuse counseling, family therapy, individual therapy, group counseling and school counseling. He is a retired Navy Veteran serving in the Persian Gulf War. While serving in the Navy his roles included Indoctrination Coordinator, Communications Supervisor and Regional Leadership Trainer.

Catherine A. Zoss, M.A., LPC

Katie Zoss is a graduate of Oakland University and received her Masters of Arts degree in 1994 and is a Licensed Professional Counselor (M.A., LPC.). She is also a Certified Advanced Alcohol and Drug Counselor (CAADC). She has over 25 years of experience in the criminal justice system working as a classification agent, a deputy in the jail, a probation officer and as a group facilitator for court ordered programs.


Bryan Weinstein, D.O.

Medical Director / CEO

Dr Bryan Weinstein is a practicing psychiatrist with board certification from the American Board of Psychiatry and Neurology. He has been board certified since 1999 and has been practicing psychiatric pharmacology as well as psychotherapy since 1997.

Dr Weinstein has extensive knowledge in the fields of chronic pain, traumatic brain injury, psychopharmacology and general psychiatry. Dr Weinstein received both his undergraduate, and Osteopathic Medical Degree at Michigan State University. He attended the residency programs of Detroit Psychiatric Institute and Wayne State University and received a mini fellowship in electroconvulsive therapy at Duke University.

Dr Weinstein is a successful lecturer for a number of pharmaceutical companies including Forest, Wyeth-Ayerst, GlaxoSmithKline, Cephalon, and Takeda pharmaceuticals. He is a member of the Osteopathic Medical Society, the Psychoanalytic Society and the Brain Injury Association of Michigan.

Dr Weinstein currently owns and practices in two private psychiatric clinics. Additionally, he has founded and operates Advanced Behavioral Rehabilitation LLC, which provides behavioral treatment for people involved in the judicial system, as well as Peak Pharmacy. He is an avid sportsman and musician as well as a loving husband and father of 3 children.

Michelle Cantea


Michelle Cantea has worked for ABR for 8 years. She started with ABR as a full-time Intern while attending Wayne State University as a full-time student; where she received her Bachelor of Arts degree in Psychology and her minor in Criminal Justice. Michelle’s passion and zeal for helping probationers transform their lives aided in her quick rise to a managerial position with ABR. Michelle is an integral part of the ABR team. She is currently the Director of Operations where she oversees the financials, administration and daily operations of the company. She also serves as a Court Liaison.

Tzvi Raviv

Managing Director

Tzvi Raviv is the newest member of the ABR team. His expertise and experience in the non-profit field give him unique insight into ABR’s clientele and will help him to excel as the Managing Director of ABR. Tzvi’s primary role as the Managing Director will be to oversee the development and implementation of new programs and services while also ensuring that ABR’s current programs and services remain up-to-date and relevant with Michigan’s ever-changing landscape.

Prior to this position Tzvi was Director of Partnership at reThink Israel, Rutgers Hillel Director of Israel Engagement, and UC Irvine Hillel Jewish Agency Israel Fellow. Tzvi has extensive non-for-profit leadership experience as well as for-profit experience as his family owns a large retail business in Ashkelon, Israel.

Tzvi received his MBA in non-profit management from the Heller School for Social Policy and Management and his MA in Jewish professional leadership from the Hornstein Jewish Professional Leadership Program.

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