About
Biography
Experience
Romain Rattaz is a Partner at Squair Law’s Paris office and a seasoned practitioner in real estate and construction law. With nearly two decades of legal experience, he advises a wide range of French and international clients, including institutional and private investors, developers, construction companies, property owners, asset managers, lessors, and operators, on complex real estate transactions and construction projects.
Romain is involved across all phases of the project lifecycle, from planning and structuring through to construction, delivery, and post-completion warranties. His work addresses a broad spectrum of technical, financial, insurance, and legal issues associated with real estate and development projects. He is particularly skilled in handling strategic negotiations, regulatory and notarial matters, and overseeing contract execution in high-stakes transactions.
Specialty
Romain focuses exclusively on real estate and construction law, with a strong emphasis on guiding private and institutional actors through transactional operations. His practice includes:
- Structuring and negotiating real estate transactions and development agreements
- Drafting and executing contracts related to promotion, leasing, and construction
- Advising on construction insurance and liability, including decennial liability, manufacturer guarantees, and damage insurance
- Supporting clients in lease structuring (including BEFA and commercial leases), transfers, and end-of-lease disputes
- Representing clients in litigation and dispute resolution across various phases of development and leasing
- His sectoral knowledge spans offices, retail spaces, high-rises (IGH), public-access buildings (ERP), hotels, warehouses, residential buildings, student housing, and healthcare facilities.
Education
- Master 2 in Real Estate and Construction Law, University Paris Panthéon-Assas
- Master in Notarial Law, Paris Panthéon-Assas University
Law Firm
Squair Law
Romain Rattaz featured in

Practice Area
Hiring a French Real Estate Lawyer in 2026: a Practical Guide for Foreign Investors
14 Sept 2026

Practice Area
France 2026: How the New Confidentiality Protection for Legal Opinions Affects Real Estate Investors, Lenders and Developers
9 Sept 2026

Practice Area
How to Negotiate and Draft Construction Contract Guarantees and Risk Allocation in France
31 Aug 2026

Practice Area
Do You Need a Real Estate Lawyer to Buy Commercial Property in France?
24 Aug 2026

Practice Area
How to Choose and Hire a Construction Lawyer in France (2026): Fees, Scope & When to Involve Counsel
17 Aug 2026

Practice Area
How to Terminate a Commercial Lease in France: Step-by-step for Landlords & Tenants
25 May 2026
Frequently Asked Questions
Is there any information about Romain Rattaz’s awards or achievements?
- Décideurs juridiques 2024 & 2025: Real Estate - Lease Law - Law Firm
- Décideurs juridiques 2024 & 2025: Real Estate - Real Estate Operations - Investment - Law Firm
- France, Décideurs juridiques 2021: Real Estate Transactions - Investment
- France, Décideurs juridiques 2021: Real estate promotion
- France, Décideurs juridiques 2021: Lease Law - France
What areas of law does Romain Rattaz specialize in?
Romain Rattaz specializes in real estate law and acquisition, property law, commercial leases and law, and construction law.
Who are the typical clients Romain Rattaz advises?
He advises a wide range of French and international clients, including institutional and private investors, developers, construction companies, property owners, asset managers, lessors, and operators, on complex real estate transactions and construction projects.
What stages of real estate projects does Romain Rattaz work on?
His practice includes:
- Structuring and negotiating real estate transactions and development agreements
- Drafting and executing contracts related to promotion, leasing, and construction
- Advising on construction insurance and liability, including decennial liability, manufacturer guarantees, and damage insurance
- Supporting clients in lease structuring (including BEFA and commercial leases), transfers, and end-of-lease disputes
- Representing clients in litigation and dispute resolution across various phases of development and leasing
- His sectoral knowledge spans offices, retail spaces, high-rises (IGH), public-access buildings (ERP), hotels, warehouses, residential buildings, student housing, and healthcare facilities.
Does the article provide information about Romain Rattaz’s education?
- Master 2 in Real Estate and Construction Law, University Paris Panthéon-Assas
- Master in Notarial Law, Paris Panthéon-Assas University
What types of legal issues does Romain Rattaz handle in construction projects?
He handles construction insurance and liability matters such as manufacturer guarantees, decennial liability, and construction damage insurance.
