Our Team

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.

Peter Brewitt RCS, CACII, ADS
Director of Counselling 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.”


Cornerstone Residential – Men’s

Shawn Sowten, CAC II, ADS, CPI
Director of  Men’s Residential Programs 

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.

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.


Cornerstone Residential – Women’s

Lori-Ann Seward
Director of Women’s Residential Programs

Lori-Ann is the Director of Women’s Residential Programs for our women’s recovery centre in Barrie. She is a Franco-Ontarian (originally from Kapuskasing), who has called Barrie home since 2002.

She has held many hats in her work experience – mainly in self-employment, grief coaching, relationship management, event coordination, business planning, resource development and real estate. She is also a very engaged volunteer in her community. But the experience she is most proud of is her journey of discovery and growth in recovery – which started in 2011.

Her passion is fuelled by working with women in recovery and in helping them grow into the best version of themselves.


Cornerstone Connections

Tina Bentley, ACSW, CACII, ADS, CPI
Director of Community Programs

Tina began her career with Steps to Recovery in 2010. Tina is The Director of Community Programs. Tina oversees Connections, Pathways & Wellness. 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.


Cornerstone Pathways


Cornerstone Wellness


Cornerstone Social Enterprise

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!

Melissa Macri
Administration & Accounting

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.

Navigate the 5 Pillars of Cornerstone to Recovery