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Seneschal Family Office
Seneschal Family Office was founded in 2004 by Jon M. Duncan as an independent advisory practice. It now operates as a multi-family office serving clients...
Seneschal Family Office
Seneschal Family Office was founded in 2004 by Jon M. Duncan as an independent advisory practice. It now operates as a multi-family office serving clients across the United States and abroad. Jeffrey M. Lang, Candace E. Duecker, and Tania P. Kaarvand serve as owners and partners. The firm allocates across private equity, real estate, commodities, and venture capital. It covers buyout, growth, seed, Series A, Series B, and venture stages. Geographic exposure spans North America and Europe. Confirmed technology focus includes enterprise software alongside FinTech and digital health. No specific portfolio holdings or co-investors appear in public records. Team size and total deployment figures remain undisclosed. The firm maintains its sole office in Tacoma. It holds membership in The Family Wealth Alliance, where Jeffrey Lang serves as co-chair for events. No dated operational events from the last 24 months are recorded in available sources. Seneschal functions as a fee-only fiduciary without product sales. Its structure centers on integrated planning for families navigating transitions rather than a dedicated investment platform or external fund commitments.
General information
Firm type
Multi Family Office
Year founded
2004
Location
Region
North America
Country
United States
City
Tacoma
Corporate office
2323 N. 30th Street, Suite 200, Tacoma, WA 98403
Principals
Jon M. Duncan
Founder and Partner Emeritus
Jeffrey M. Lang
Managing Principal and Owner
Candace E. Duecker
Partner and Owner
Tania P. Kaarvand
Partner and Owner
Sector focus
Frequently asked questions
Who runs investment decisions at Seneschal Family Office?
Jeffrey M. Lang serves as managing principal and owner. Jon M. Duncan founded the firm and holds the title of partner emeritus. Candace E. Duecker and Tania P. Kaarvand act as partners and owners.
Is Seneschal Family Office structured as a single family office or multi-family office?
It operates as a multi-family office. The firm provides services to several affluent families rather than one primary family.
Does Seneschal Family Office participate in fund commitments or only direct deals?
Public information does not specify allocation between fund commitments and direct investments. The firm lists private equity and venture capital among its investment types.
What investment stages does Seneschal Family Office typically target?
The firm covers buyout, growth, seed, Series A, Series B, and venture capital stages according to its records.
Where does the underlying wealth come from?
No specific family wealth origin is publicly disclosed. The firm traces its roots to Jon Duncan's independent financial planning practice.
How is Seneschal Family Office related to The Family Wealth Alliance?
Seneschal is a member firm. Jeffrey Lang serves as co-chair for alliance events.
Does Seneschal Family Office maintain philanthropic structures?
The firm lists Symphony Tacoma among its associations. No separate foundation vehicles are detailed in available sources.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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