Private office · Cross-border CFO to founders & families
A Yale-trained, CFA-chartered CFO for entrepreneurs whose companies, capital and families span borders. Tax planning, structuring, estates and asset protection — and the listings, deals and disputes that define a fortune — held by one principal who answers for the whole picture.
Wealth that lives in five countries doesn't need five advisors. It needs one principal who sees the whole board — and answers for the outcome.
Offices — Toronto, Miami, Panama City, San Juan, Madrid
Countries lived and worked in, from Zurich to Bogotá
Countries travelled — the terrain my clients operate in
Principal accountable for every jurisdiction, entity and decision
The practice
Most founders assemble a different advisor for every problem, and pay for the gaps between them. I bring the disciplines together — handled personally, or directed through vetted specialists on the ground in each jurisdiction.
Residency, treaty positioning, departure and exit tax, CFC exposure. The plan is modelled before the move — not argued after the assessment.
→Holding companies, operating entities, foundations and trusts across jurisdictions — built around how you actually earn, hold and spend.
→Succession plans that survive more than one legal system, with clear answers to who controls what — and who inherits it.
→Ownership, control and jurisdiction arranged in advance, so that no single claim, partner or creditor can reach everything.
→First-hand experience taking companies to the public markets — the readiness, reporting and structure an issuer needs long before the listing.
→Buy-side and sell-side: valuation, diligence, deal structure — and exactly where the proceeds land, and how they are taxed.
→When value is taken, I build the financial case: tracing assets, quantifying loss and directing counsel across borders through to recovery.
→Portfolio oversight, multi-entity books and forecasts, rolled into one consolidated balance sheet you can read in five minutes.
→Architecture
Every mandate begins with a single map of the whole structure — who owns what, where it is taxed, who controls it and who inherits it. Then every decision is tested against that map before it is made.
Illustrative structure — every mandate is designed to the clientMethod
A defined diagnostic and architecture phase, implementation with counsel on the ground, then a standing stewardship retainer — one relationship, from first map to final generation.
Every entity, account, property, residency tie and filing obligation — mapped, with exposures ranked by cost.
The target structure, tax position and a multi-year plan, modelled across tax, cash and legal before anything moves.
Executed with vetted counsel in each jurisdiction — sequenced, costed and checked from one desk.
Monthly close, consolidated reporting, a quarterly board-level review, and a direct line when the unexpected lands.
The principal
Institutional training, deal-table experience and a life lived across nine countries. The same questions my clients bring me, I have had to answer for myself.
I began where many of my clients begin: in the Canadian system, with a business degree from Wilfrid Laurier and a clear view of how much a single-country life can cost an ambitious founder — and how much more it can cost to leave badly.
My early career was spent inside transactions — preparing companies for the public markets and working mergers and acquisitions. It taught me how enterprise value is created, and how quickly it leaks through weak structure, poor timing and the wrong jurisdiction.
An MBA at Yale and the CFA charter added the rigour of the institutional side: think in balance sheets, in decades, and in downside first. It is the standard I hold every family balance sheet to.
Bogotá. Mexico City. Pamplona. Zurich. Florence. And, since 2017, Panama City — with more than seventy countries travelled along the way. Residency, banking, property, heirs and disputes across borders are not theory to me. I have navigated each of them personally.
I founded Grey River Associates, a cross-border tax advisory and wealth-structuring firm with a family office practice, with offices in Toronto, Miami, Panama City, San Juan and Madrid. Alongside it: a securities licence in Panama, ADIT in international taxation, and STEP affiliation in trusts and estates.
I am completing an LLM in International Tax Law at King's College London — because the rules that govern global wealth change every year, and my clients can't afford an advisor who stops learning.
Who retains me
The structure set right before the liquidity event — and the proceeds deployed well after.
Departure tax, non-residency and a clean landing in Panama, Spain, the US or beyond.
Income, entities and clients across countries, finally reconciled in one place.
Assets, heirs and obligations in several jurisdictions, held under one coherent plan.
Engagement
I accept a limited number of new principals each year, by application. Every engagement is scoped as a single mandate — fixed in fee, personal in delivery, confidential by letter. Never an hourly meter. Never a junior team.
Begin
Send a short note: where you live, where you earn, and where you're headed.
A confidential 45-minute call with the principal — not a sales team.
A written view of your three largest exposures, whether or not we proceed.