Cross-Border Deal Advisory
Cross-border advisory
on select private
transactions.
Senior-led, discreet, and bespoke — from first call to close.
The Firm
A boutique by design. We take a deliberately select number of mandates so that each receives the full weight of a career spent moving capital across borders.
What We Do
Advisory, end to end.
01
M&A Advisory
We advise owners, developers, and institutional investors on mid-market corporate and real estate transactions — structuring and executing value-creating deals with discretion and precision.
02
Strategic Capital Matching
We engage capital partners who are qualified and genuinely aligned, pairing bespoke outreach with long-standing relationships across family offices, funds, and strategic buyers in the Americas, Europe, and the Middle East.
03
Cross-Border Structuring
Three decades inside global markets means a constant read on regulation, currency, and capital appetite — so clients move decisively where complexity scares others away.
MKSPortrait
The Founder
Mauro Keller Sarmiento
Managing Director · Harvard BA · Columbia MBA
Mauro brings over 35 years of international business experience across the Americas, Europe, and the Middle East, specializing in cross-border transactions. His expertise spans financial services, management consulting, and real estate advisory — built across J.P. Morgan, McKinsey & Company, and Goldman Sachs.
Before founding KS Advisory, he led the international expansion of the Insignia Group and NAI Global across Europe and Latin America. He has lived and worked across multiple countries and speaks five languages fluently — a genuinely global operator with a deep, cross-border network earned deal by deal.
“In every deal, the real value comes from aligning strategy with execution. That’s where we focus.”
35+
Years of Dealmaking
8
Countries Active
1:1
Senior-Led Mandates
Why KS Advisory
Discretion is the strategy.
The most consequential transactions are rarely advertised. Our edge is access, judgment, and the trust to be told what others are not.
A Network Built Over Decades
Private capital, institutional investors, and boutique funds across continents — relationships cultivated through years of trust and performance, not cold introductions.
Senior-Led, Always
Every mandate is led personally by the founding partner. No handoffs, no dilution of judgment — supported by trusted specialists only where it sharpens the outcome.
Bespoke
No two deals are alike, and we never pretend otherwise. Each engagement is tailored to the asset, the counterparties, and the moment in the market.
Global Reach
Deals, wherever they are.
Live mandates and active relationships span the Americas, Europe, and the Middle East — capital and opportunity, connected across borders.
The Process
From mandate to close.
01
Strategy
Understanding your goals, constraints, and timing — the foundation every decision is measured against.
02
Positioning & Mapping
Crafting the right narrative and identifying the most suitable capital partners for the mandate.
03
Outreach & Negotiation
Senior-led dialogue, clear communication, and the alignment of interest that moves deals forward.
04
Structuring & Coordination
Navigating terms, documents, and sensitivities across every party with steady hands.
05
Closing
Efficient execution with senior oversight through the final, decisive steps.
Insights
Perspective from the table.
Land Deals & Regulatory Timing: What Sellers Miss
Read →Structuring Flexibility: The New Currency in M&A
Read →Updated quarterly.
Contact
Let’s talk.
To discuss a potential transaction, reach out directly. Every conversation is treated with complete discretion.