Who We Are

To meet the needs and exceed the expectations of our clients, Sterling has assembled one of the most admired, trusted, professional and dedicated support staffs in the industry. Integrity, professionalism, and value added services are the hallmarks of the Sterling Resources tradition.

Our staff is composed of high-level insurance professionals with decades of experience in case analysis, field underwriting and carrier negotiation. We do not provide estate planning services, nor do we offer tax or legal advice.  Rather, with our considerable experience in these areas, we work in conjunction with trusted advisors and family office professionals to design and implement the insurance coverage which creates the liquidity necessary for estate and business succession plans to succeed.

Well known by advisors of ultra-high net worth families and philanthropic organizations, the Sterling Resources team has been working together to serve clients for over three decades. The average length of service of Sterling’s core support team is in excess of sixteen years. The absence of staff turnover is reflective of an environment conducive to building long term relationships, internally and with our clients and their advisors. This continued level of commitment has laid a foundation that enables us to provide exceptional service to our clients well into the future.


Karl J. Feitelberg

As the Founder of Sterling Resources, Ltd. and Sterling Resources International of Bermuda Ltd., Karl is responsible for all specialized insurance services. Karl earned a Bachelor of Arts degree in Economics from Fairfield University. Karl is the 3rd generation of the Feitelberg family to enter the insurance industry. He is a licensed Insurance Advisor, and has earned designations of Chartered Life Underwriter, Chartered Financial Consultant, Trust and Estate Practitioner, Accredited Estate Planner®; holds a FINRA Series 6 registration (Investment Company Products/Variable Contracts Limited Representative), is a member of the Association for Advanced Life Underwriting (AALU), Boston Estate Planning Council, a member of the National Association of Insurance and Financial Advisors, a member of The Society of Financial Service Professionals, and a member of the Society of Trust and Estate Practitioners* (“S.T.E.P.”). Recognized both nationally and internationally, Karl is regularly invited to develop and speak on family enterprise succession and related topics at University sponsored educational conferences for families and Family Office professionals.

Karl is deeply involved with several philanthropic organizations.
California Insurance License #749293.
* Services are performed in conjunction with one’s tax and legal advisors.

Karl Feitelberg is a registered representative of and offers securities through The Leaders Group, Inc., Member FINRA/SIPC Supervisory Office: 26 W Dry Creek Circle, Suite 800, Littleton, CO 80120, 303-797-9080.

Check the background of this investment professional on FINRA’s BrokerCheck.


Tobi Silver

Tobi has been with Sterling Resources since the company was founded in 1989. As President, she works with trust and estate advisors, tax planners and wealth managers, heading all advanced underwriting tasks, and utilizing her more than 30 years’ experience specializing in private and corporate split dollar plan evaluation and implementation. Tobi also contributes to the ongoing development of planning tools and portfolio stress testing.

With a background in finance and information systems, Tobi approaches each project as a technician. This is a mindset that helped her lead the development of the company’s service department. Also, despite the insurance industry being fairly new to her in her early days, she is now the firm’s leader in translating its values and vision to clients.

Tobi earned a BA, magna cum laude, in Economics from the University of Massachusetts at Amherst and holds an MBA in Finance and Information Systems from Northeastern University. While at Northeastern, Tobi was also inducted into Phi Beta Kappa.


Linda Nistico Klier
Executive Vice President – Advanced Sales

Linda joined Sterling in 2013.  In her role as Executive Vice President, she specializes in private and corporate split dollar evaluation and private placement life insurance analysis and implementation.  She contributes to life insurance portfolio design, as well monitoring policy and split dollar plan performance.  Linda develops the company’s marketing and educational materials.  Her previous roles at Sterling were Financial and Management reporting, Human Resources and Family Office support to the CEO.  Her various roles in the organization are the foundation for her technical skills and industry knowledge.

Linda earned a Bachelor of Science in Accounting from Babson College, where she also played 4 years of varsity tennis.  Prior to joining Sterling Resources, Linda started her career in public accounting at Arthur Andersen, LLP in Boston.  There she earned her CPA credentials and worked for 14 years in the Commercial Audit division and Operational Consulting division.

Director of Business Development

Jason Feitelberg
Director of Business Development

Jason Feitelberg is the Director of Business Development at Sterling Resources, a leading boutique life insurance agency that specializes in intergenerational wealth transfer and accumulation strategies for UHNW families. He continues his family legacy as the 4th generation to work in the insurance industry.

Jason leads the firm’s Institutional Business Development, building relationships with clients in the corporate, nonprofit, wealth fund and family office sectors. Jason works both domestically and internationally, with an emphasis on Latin America, Europe and Africa. Prior, he worked at investment management firm Babson Capital (now Barings) in client management and investor relations.

In 2008, Jason began working with Crossroads for Kids, a youth development nonprofit, and currently serves as Trustee and Development Chair. The inspiration for this stems from two childhood events. One is the story of a friend, who at a young age was forced by circumstances to take on major life responsibilities. The other is a surprising and impactful encounter with the Saint Teresa of Calcutta (Mother Teresa) while he was in middle school in Boston.

His first steps in charitable work came in high school working in soup kitchens; but, it was during a Semester at Sea journey around the world in 2003, visiting many countries, including Cuba, Brazil, South Africa and India, that he experienced the impact of his actions. In the villages of the Amazon in Brazil or the townships of Cape Town, Jason saw firsthand a way of life removed from necessities seen as commonplace, and he worked with locals to improve living conditions and distributed clothing and other essentials. In India, he saw things come full circle when he found himself working with children at an orphanage run by Mother Teresa’s’ Missionaries of Charity, nearly ten years after they met in 1994.

Jason earned a BS in Business Administration from Colby-Sawyer College.

Jason Feitelberg - Profile on The Marque



Ryan Stang

As a Principal, Ryan works directly with clients using his expertise to offer a range of options and best-in-class solutions for their life insurance and estate planning needs. Ryan listens to his clients and uses Sterling Resource’s extensive knowledge base to create individualized opportunities for each client.

Ryan began his career as a Financial Professional at a major U.S. Mutual company, where he worked for nine years. Ryan’s belief that financial stability is key to a family’s future empowered him to open his own business in 2019, Stang Insurance Consulting.

Ryan’s upbringing in “The City of Good Neighbors” by two small business owners and operators instilled in him the values of self-initiative and community. He is in an ongoing partnership with Buffalo Bills Hall of Famer Jim Kelly and has raised over $240,000 to benefit children with disadvantages and special needs in Western New York. In addition, Ryan was the 2020 and 2021 Top Fundraiser in Buffalo for “Real Men Wear Pink,” an organization raising money for the American Cancer Society and the fight against breast cancer. He is also a Board Member for the Buffalo Sports Hall of Fame.

Ryan holds a B.A. degree in Communications from Buffalo State College. He resides in Hamburg, NY with his three daughters – Rylie, Delanie, and Shaylie – and his fiancé, Melanie.


Our Team

Amber Cummings
Client Service Manager

Amber joined Sterling Resources, Ltd. in 2023. She brings over 20 years of high-level client experience from her time in finance and private banking. Amber’s career in Advanced Markets has made her skilled in complex life insurance strategies. At Sterling Resources, Ltd., she applies her knowledge and her client service experience to provide our clients with a wide array of policyholder services including annual reviews of complex, diversified insurance portfolios. Amber graduated from Katharine Gibbs School in Boston and lives on the Cape with her family.

Our Team

Lael Estifanos
Marketing Analyst

Lael joined Sterling Resources in 2018. He is responsible for assisting in the development of marketing presentations, conducting market research, as well as providing direct administrative support for Tobi Silver. A self-motivated and goal oriented individual whose true nature stems from his deep involvement with Crossroads, a year round youth leadership program since 2007; Lael obtained his Bachelors of Science in Management/Marketing from Bridgewater State University in 2017.

Our Team

John Fields
Marketing/Product Analyst

John Fields joined Sterling Resources, Ltd. in 2019. He brings 19 years of experience to our team in both Finance and Life Insurance. He is responsible for assisting in the development of marketing presentations, conducting market research and performing analytic and administrative duties for the Marketing Department and Senior Management. He is an active volunteer with the American Liver Foundation charity marathon team and is a three-time winner of the Volunteer of the Year award.


Our Team

My Loi
New Business and Policyholder Support

Mimi joined Sterling Resources, Ltd. in 2010 and works in all aspects of the underwriting process and policyholder services. She is also responsible for obtaining proper carrier appointments for our producers. Mimi works with our clients’ attorneys, accountants and advisors, allowing our office to coordinate the execution and exchange of necessary supporting documents required to streamline the life insurance planning process. She entered the life insurance industry in 1988 working as a New Business Case Manager and was a liaison for agents and life underwriters for a major life insurance company for many years. Mimi holds a Bachelor of Arts in Mathematics from Boston University.

Underwriting Process: Includes preliminary forms, obtaining medical record history, coordinating examination times, providing insurance carriers entire underwriting files and negotiating the best offer for our client.Servicing: Includes but is not limited too, changes to an in force policy/contract such as, loan/withdrawal transactions, dividend option, underwriting classification updates, address changes, death benefit options and owner/beneficiary changes. In addition, our office provides a detailed Summary of Policy Values, including in force illustrations reflecting current and reduced dividend and interest rate assumptions. Our office assists our traditional, registered variable clients and private placement clients by providing forms for the execution of their desired premium allocations, fund transfers and obtain performance histories. For our private placement clients only we assist in premium notification and help execute transfers of funds among their various planning entities.

In addition, we provide assistance with coordinating life insurance and annuity products with the necessary supporting documents: Examples, Irrevocable/Revocable Trusts, Split Dollar Agreements, Collateral Assignments, LLC’s, and various administrative services.

Our Team

Kristin Perry
Kristin Perry- Executive Assistant to Karl Feitelberg

Kristin joined Sterling Resources in 2021. She is the Executive Assistant to Sterling’s Founder, Karl Feitelberg. Kristin prides herself on being the “hub” of the firm while forging new relationships with the client and partners. Kristin comes to us with 30 years of professional experience as an Executive Assistant, including 16 successful years at Toshiba Business Solutions, where she was the EA to the Northeast Regional President, assisting with the day to day operations of the business. In 2014, Kristin relocated to the South Shore in Massachusetts, where she served as the EA for the founders and Principals of a boutique investment & insurance firm in the Quincy area. She gained additional experience in the insurance and investment space in this role.

Kristin enjoys spending time with her family and friends camping, fishing and enjoying the outdoors.