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About Us

Vested Interest in K9s founder and President, Sandy Marcal with the late K9 Gomo of Brockton, MA.

Sandy Marcal

Sandy Marcal is a lifelong animal lover who has dedicated many years to promoting the wellness of animals.  She has volunteered over the past 13 years working with K9 teams across the country and has assisted in securing funds for over 1000 bullet and stab protective K9 vests.  She was featured in ABC World News with Diane Sawyer “America Strong” segment in November of 2013. Ms. Marcal also produced and hosted an internet/cable television production called, “The Pet Zone” featuring monthly pet professionals for four years.  Previously she organized fundraising events for over a dozen different non-profit animal rescue organization. She currently shares her life with 6 rescue cats.

Linda Fitzgerald

Sandy Marcal and Linda Fitzgerald

Linda Fitzgerald is a life-long animal lover.  She received an Associates Degree in Accounting from Quincy College and a Bachelor’s Degree from Eastern Nazarene in Business Management. Ms. Fitzgerald owned the Dairy Barn in Randolph,MA from 1990-1997. For the last several years, Linda has volunteered at Vested Interest in K9s, Inc. events and assisted with event preparation. After learning more about the K9 programs and having an opportunity to present a Massachusetts Police dog with a vest, she decided to become more involved. Linda has had the pleasure of meeting many K-9s and seeing just how accomplished and special these hero dogs are to the local communities.  Linda shares her life with two rescue dogs that are the loves of her life.

Kathy Doherty

Kathy Doherty and Sandy Marcal

Kathy Doherty has worked in the police supply field for over 22 years in sales, bookkeeping and customer service.  She is married to John Doherty, a former K9 Officer with the Barnstable County Sheriff’s department.  The Doherty household consists of two miniature dachshunds, Greta and Sofi Esmeralda, who often make personal appearances in their hand crafted K9 vests, at the Vested Interest in K9s events.


Jodi Roos


Jodi Roos and Sniper

Jodi Roos is a Veterinary Technician and Office Manager at Ryegate Small Animal Hospital in Ryegate, VT.  She has been in the animal field since 1992. She received her Associates in Applied Science from SUNY Delhi and her Veterinary Technician License in 1998. She started volunteering with Vested Interest in K9s in 2011 after contacting Vested Interest in K9s about getting a vest for her husbands police dog, Quincy.
She got more involved with the organization and helped secure vests for over 25 dogs in the State of Vermont. She continues to help vest dogs all over the country. Jodi lives in Vermont with her 2 children, her husband, his police K9 Quincy, a Chiweenie named Sniper, and a cat named Berlin.

Kriscel Estrella


Officer Nate Kinsey and K9 Rocky of Richfield, MN with Kriscel Estrella





Kriscel Estrella has over 10 years of human resource and operations experience. Her love of animals, and her husband’s background in security and law enforcement, made volunteering  with Vested Interest in K9s a natural fit.  When working with a local salon in St. Paul to coordinate a fundraiser for Minnesota law enforcement K-9s, Kriscel became acquainted with Sandy Marcal and began volunteering for Vested Interest in K9s. The event provided the funds to secure vests for 11 dogs, which is now an annual event.

Since 2009 we have provided
bullet and stab protective vests for law enforcement dogs throughout the country

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