Our team members are the very fabric of our organization and are living examples of Cornerstone’s values of Compassion, Integrity, Service, and Humility.We are fortunate to have a dedicated, talented group of people who work each and every day to make our recovery community the most incredible place to be!We asked them to share a little bit about themselves with you!

Cornerstone Management Team

Blaine Hobson
Co-Founder & Executive Director (Volunteer)

Blaine is an experienced operator, manager and investor with more than 30 years of experience successfully starting, building and running companies. He has direct leadership experience as a founder and CEO in a variety of diverse industries including automotive manufacturing, medical tech, telecom and food tech. He holds a degree from the Richard Ivey School of Business at the University of Western Ontario. Blaine is active in the community including his involvement with Hope House , Southlake Hospital and as founder and ongoing supporter of Cornerstone to Recovery (previously STEPS). His vision drives the ongoing development of unique recovery community services at Cornerstone.

Patty Trudel, CPA
Director of Finance & Operations

Patty is a Certified Professional Accountant and holds her Certificate in Human Resources. She has spent over 30 years gaining experience in finance and accounting within various industries. As the Controller for Cornerstone to Recovery for the last 5 years, she enjoys working in a charitable non-profit organization that strives to help those in need in the under serviced field of addiction recovery. While accounting is her day job, Patty also enjoys spending time with her grandchildren and cheering on the Toronto Maple Leafs!

Peter Brewitt RCS, CACII, ADS
Director of Programs & Development

Peter has been involved in substance abuse, addictions and associated behaviours for the past 27 years. His lived experience, continuing education and passion for helping others make for a strong commitment to our recovery community. As a Registered Clinical Supervisor, he oversees the day-to-day operations of our programs and is involved in ongoing organizational development. From residential programs through to new program offerings, Peter works with one driving principle…. “Provide those in need with the very best opportunity to improve the quality of their lives.”

Maureen Bornbaum RSSW CAC II BA Hons
Director of Community 

Maureen Bornbaum is a Registered Social Service Worker, Clinical Traumatologist and Certified Addictions Counsellor II who works from a trauma informed, anti-oppression framework. Maureen gained a Bachelor of Honours in Global Development and Gender Studies from Queen’s University in addition to a Social Service Worker Diploma from Seneca College. She has since completed professional development in ASIST, Clinical Trauma Counselling and is certified in Cognitive Behavioural Therapy and Acceptance & Commitment Therapy. After completing her studies in 2017, Maureen joined Cornerstone full-time as a Program Facilitator and Counsellor. Maureen provides a variety of services in the Cornerstone Pathways, Wellness and Residential programs. She manages the Wellness Centre & program, coordinates & facilitates the women’s support group, and runs the Exit Planning Program within Cornerstone Residential men’s program. Grounded in empathy and a wide variety of therapeutic modalities, Maureen is dedicated to creating a safe and comfortable space for individuals and families to begin their healing journeys.

Cornerstone Residential – Kettleby Ranch

Peter Brewitt
Director of Programs & Development

David Walker, CAC II, CPI 
Residential Addictions Counsellor

Dave began his career with U.S.I. Lighting in San Leandro California, gaining unparalleled experience in the North American lighting industry, establishing himself as a respected and trusted businessman. Dave has been part of the Men’s Residential counselling team since 2017.Currently working as an Addiction Counselor for Cornerstone to Recovery, Dave is widely known for his passion, energy and expertise in the field of recovery.While his business background took David across North America, he resides in Bradford Ontario and is an active member within both our recovery community and broader York region.

Shawn Sowten, CAC II, ADS, CPI
Lead Residential Counsellor

Shawn’s career background was in the property maintenance industry, with over 15 years’ experience in manager and business development capacities. Shawn gained a Bachelor of Honours degree in Criminology studies from the University of Windsor in addition to completing professional development training in ASIST, and Cognitive Behavioural Therapy for his AAC certification. Currently working as an Addiction Counsellor for Cornerstone to Recovery, Shawn has a strong passion working with those new to recovery from addiction. His leadership skills along with knowledge in the field of recovery, helps our clients find purpose and direction in their lives.

Cornerstone Residential – Women’s

Cornerstone Pathways

Tina Bentley, ACSW, CACII, ADS, CPI
Program Coordinator

Tina began her career with Steps to Recovery in 2010. Tina is the Program Coordinator for Cornerstone Pathways’, STEPS Pre- Employment Program. She completed her diploma as an Addictions and Community Service Worker and she is designated as a Canadian Addiction Counsellor, Certification Level II. Tina holds additional certificates in Acupuncture Detoxification, Life Skills Coach, Personality Dimensions Facilitator, CPI Training, First Aid and CPR. Tina’s approach encourages positive change through improvement on skills individuals already possess. Tina has a strong passion for working with clients with addictions. Her empathetic and caring personality truly help clients feel at home and safe to begin building productive lives.

Carleen Riffle, RSSW, AAC
Pathways Program Facilitator

Carleen is a Registered Social Service Worker and Associate Addictions Counsellor who works from a trauma-informed, anti-oppressive approach. She began her time at Cornerstone to Recovery as a placement student in the Wellness Centre in 2019. After graduating with her Social Service Worker Diploma from Seneca College, Carleen worked with youth, families, and individuals experiencing homelessness in a variety of social service settings and gained valuable experience that is an asset to Cornerstone. In May, 2021, Carleen returned to Cornerstone to Recovery as the Pathways Program Facilitator and supports Cornerstone clients on their recovery journey. Alongside her formal education, Carleen has training in trauma informed practice, anti-oppressive practice and concurrent disorders. Carleen is a passionate and caring social justice advocate who seeks to provide her clients with a safe and supportive environment to achieve their goals, whatever they may be. Carleen understands the complex layer of experiences that contribute to addiction and uses her compassionate nature and broad skill set to help clients unravel these layers to become the person they wish to be.

Cornerstone Connections

Bob Waite
Club Manager

Bob has been with our organization since 2016 and is currently Cornerstone Connections, Club Manager. Each week Bob can be found organizing nightly A.A. meetings at our Steven Court location and overseeing meetings for a variety of addiction groups in York Region. If you are interested in booking our meeting room or our premises for sober socials, dances, fund raisers and/or special events, Bob will be happy to make arrangements that will more than meet your needs.

Prior to his work at Cornerstone (previously STEPS) Bob spent 25 years in the Toronto Police Services and holds a special interest in assisting first responders who may have developed an addiction and are seeking help to achieve and maintain their recovery. When Bob is not found at Cornerstone he enjoys reading and gardening. Bob is fondly referred to as the Ambassador of The Club and will ensure your first visit to our Recovery Community Centre is not your last!

Cornerstone Wellness

Maureen Bornbaum, RSSW, CAC II, Honours B.A.
Director of Community

Cornerstone Social Enterprises

Patty Trudel, CPA
Director of Finance & Administration

Melissa Macri
Accounting & Administrative Assistant

Melissa officially joined the Cornerstone team as a staff member in August of 2019, but her journey with the organization started in 2017 when she was first introduced to Cornerstone to Recovery as a member of the 12 step community.  Her lived experience is the driving force that fuels her passion to help others who have been where she was to obtain a life of complete sobriety.  As such Melissa has been able to see both sides of the incredible support that Cornerstone to Recovery provides.

Melissa provides accounting assistance to Patty Trudel, Director of Finance and Operations and supports the rest of the staff, volunteers and clients with day to day operations.  Through the Social Enterprise pillar she also obtains the licensing for the clothing donation drop boxes.  Melissa loves to see people smile and always up for a laugh. Her lighthearted spirit is what has led to the staff affectionately giving her the nickname “the brat.”

Vivian Guglietti
Community Liaison

Vivian Guglietti’s passion for recovery can be traced back to 2008 when she made a personal decision to address her addiction and embrace the responsibilities connected to achieving a recovered way of life! Vivian has spent over a decade pursuing personal development and professional leadership. In addition to being mother of three vibrant daughters she is very active in her local community and has helped many achieve personal transformations in their own lives! Vivian holds the role of Community Connector and Business Development leader where she brings people together to support our growing and evolving organization! Her commitment to those in recovery and high standard for partners has contributed to the success of our Textile Recycling program. Vivian holds an Honors Degree in Languages from York University, her Toronto Real Estate Board License and an Addiction and Professional Counselling Certification.