About Milestone Marriage and Family Therapy Services in Ontario, CA

Milestone Marriage and Family Therapy Services in Ontario, CA focuses on supporting individuals, couples, and families through life’s challenges with compassionate, evidence‑based care. Their experienced clinicians specialize in relationship dynamics, communication, emotional health, and personal growth, creating a safe and collaborative space for clients to explore concerns and build lasting change. Whether working through conflict, transitions, or stress, Milestone is dedicated to helping clients achieve greater balance, connection, and well‑being in their lives. For more information, contact us or schedule an appointment online. We are conveniently located at 3491 Concours St Suite 202, Ontario, CA 91764.

The belief that you are doing it alone can be overwhelming and sometimes you need a caring individual to walk alongside you to lend you a hand and help you get unstuck from frustration, anger, denial, grief, or conflict. Leslie A. Miles is a licensed Marriage and Family Therapist and graduate of California State University Fullerton. Leslie has worked in the social service field for over 15 years. She has worked with children, teens, adults, elderly, and families. Leslie specializes in working with children that have experienced sexual, physical, and emotional trauma, adults and children with intellectual disabilities, postpartum in woman, and fertility issues. She is currently serving as a private practitioner in Rancho Cucamonga, California. She is a certified Nurturing Parenting Facilitator and has organized groups for parenting and pregnant teens and young adults. Leslie is passionate about working with individuals, couples, and families who are struggling with day to day difficulties equipping each individual with the tools to restore balance in their lives and empowering each individual to reach their full potential. Her therapeutic technique includes a strength-based approach to treatment that empowers her clients to reach their goals in a supportive environment.