Karijn Haasjes has been a practicing attorney since 2022 and joined the Real Estate practice group at Wijn & Stael in early 2026. She advises and represents clients in lease and construction disputes and has extensive experience in commercial real estate transactions. Karijn also counsels clients on matters relating to the energy transition and grid congestion, such as grid connections, on-site generation and supply of renewable energy within real estate projects, and drafting related provisions in (lease) agreements and transaction documents.

Looking Beyond the Beaten Path
Karijn is a dedicated, results-driven, and energetic attorney who thrives on complex legal challenges. She combines her positive, critical mindset with a readiness to challenge conventional practices in pursuit of creative and future-proof solutions. Karijn values close and genuine relationships with her clients. “I believe in open, transparent communication and in serving my clients with care and dedication. I always keep their objectives top of mind as I pursue the best possible outcome for them."

Broad Legal Foundation
Prior to joining W&S, Karijn worked at an international law firm and a legal service provider specializing in family law. 

Academic Background

• Law Firm School, 2025
• Dutch Law, LL.M., concentration in Private Law, 2022, Leiden University

Cases

• Advised and assisted various clients on the refinancing, acquisition, and sale of commercial real estate and real estate portfolios.
• Drafted and negotiated lease agreements, including specific green leases and specific lease agreements for the operation of solar panels and/or EV charging infrastructure. 
• Advised various contractors in large-scale development projects, drafting the purchase and construction agreements and leading the related negotiations.
• Conducts ongoing real estate transactions centered around (collective) energy supply, advising on property law and contractual frameworks for cable pooling, energy hubs, and shared energy infrastructure.