Newsroom
Announcements, research releases, and letters from Grey River: international tax, residency, and cross-border wealth.
The Grey River Annual Letter
The firm's annual letter: positioning, structuring themes, and the year in cross-border wealth: how globally distributed clients held the whole board through a shifting fiscal landscape.
Grey River is hiring: Head of Content
A producer and editorial strategist to lead the firm's research, letters, and video program from Panama City.
May 2026 Firm NewsGrey River introduces Cross-Border Wealth Oversight
An ongoing advisory retainer for relocated clients: annual consolidated net-worth analysis, quarterly reviews, and allocation oversight, in Core, Standard, and Premium tiers.
2026 ResearchAsymmetric Mobility: The Firm's Framework Paper
Why mobility has become one of the highest-leverage variables on a modern balance sheet.
2026 CommentaryThe Fracturing of the Western Fiscal Contract
On rising fiscal pressure across Western economies, and what it means for those with the means, and the reasons, to move.
2026 Jurisdiction MemoPanama Residency Programs vs. Other Jurisdictions
A working memo benchmarking Panama's residency programs against the leading alternatives.
2025 Firm NewsStrategic Brief: Built for Those Who Build Across Borders
Who Grey River serves, and how: high-net-worth individuals, business owners, and enterprise executives navigating international tax, residency, asset protection, and wealth.
Media & speaking
Nate Shantz is available for interviews and commentary on international tax, residency planning, and cross-border wealth, and for speaking engagements in English, Spanish, and Portuguese.
Brand assets and founder bios are available on request.