Siobhan McDermott

Financial Services Professional

Siobhan McDermott joined the Cornerstone team in 2025 as a Financial Services Professional.  Siobhan is a lifelong resident of Rhode Island who started her financial career as a customer relationship advocate, where she learned the value of smart planning and building strong client relationships.

At Cornerstone, Siobhan’s focus is on helping clients make confident decisions about their money. She’s passionate about simplifying finance and giving clients the clarity and guidance to reach their goals. 

Siobhan enjoys volunteering with Save the Bay and is a proud member of the South County Chamber of Commerce.  Siobhan can be reached at Siobhan@cstonefinancial.com.