About us
Meet the team
Leadership team
Individually our team members excel, and collectively we lead. Our expert team has a rich background in property, insurance and finance.
Working together, the team provides clear, practical advice across transactional risk, structural and construction insurance, and property finance. We have built a strong track record advising a wide range of developers, from established market names to fast-growing and entrepreneurial development businesses, on complex and time-critical projects.
Over the past 10 years, Jack's career has transcended across insurance, finance and sport. Jack established J3 with James and Johnny to provide property professionals with forward-thinking advice on debt structures coupled with insurance, primarily latent defect. He has a reputation for cultivating strong relationships with lenders, insurers and developers alike through his honest and direct approach.
Johnny began his career at a specialist risk insurance broker and became renowned for arranging insurance on a vast array of property assets across the UK. Here he gained insight on what property professionals are missing when it comes to insuring new schemes. Now Johnny is one of the Js in J3 and is regarded as the go-to insurance person by a number of the UK’s most coveted developers.
Rosita is our Operations and Marketing Director. She has worked in insurance and finance for over 5 years and leads J3's brand, campaign strategies, communication and PR. Rosita also ensures the business is customer-led, innovative and process-efficient. Prior to working with us, she held roles in the legal, financial and serviced office sectors after achieving her MBA, BA and fluency in three languages.
Michael has nearly two decades of experience in the real estate insurance market, having worked across a range of leading insurers, MGAs and brokerage firms. His background spans sales, underwriting and business development, giving him a well-rounded understanding of how insurance solutions support the Built Environment.
Prior to joining J3 Advisory, Michael established and led SRG’s legal indemnity broking practice, working closely with solicitors, developers and lenders to unlock transactions through the effective use of specialist insurance products. He brings with him a strong professional network and deep knowledge to drive growth.
Michael joined J3 Advisory as a Director, where he leads the real estate and construction offering and is responsible for the group’s strategic growth within the transactional risk space.
Mark has spent the past decade building his career across the construction and insurance sectors, developing strong expertise in commercial strategy, client origination and stakeholder management. He progressed into senior leadership within a specialist structural defects insurer, operating at director level with a focus on growth and market expansion.
His experience centres on structural defects insurance, where he has worked closely with developers, builders and key stakeholders to deliver flexible, quality-led solutions across residential and commercial projects. Known for his relationship-led approach, Mark aligns commercial objectives with long-term partnership value - Particularly where insurance structure interacts with funding and delivery.
At J3 Advisory, Mark supports property professionals as part of an integrated advisory platform, spanning both insurance and finance.
Ellie has collaborated with developers across the UK, delivering tailored insurance solutions for a diverse range of high-value developments. Ellie brings a wealth of knowledge and a dedicated focus to the North West region. Her proactive approach and commitment to her clients have earned her a reputation for providing high-quality service and creating long-term value.
Matt joins J3 bringing a wealth of experience in advising large-scale Build-to-Rent (BTR) and Purpose-Built Student Accommodation (PBSA) developers nationwide on their insurance requirements. He has also established a strong foothold in the distressed property market, working closely with a wide network of Insolvency Professionals and Lenders’ restructuring teams to secure part-complete, retrospective, and replacement cover. His ability to navigate complex placements and deliver robust solutions has become his professional hallmark, underpinning long-standing client relationships. Originally from Leeds, Matt studied in Newcastle before making the move to London.
Joshua brings a varied background to his role at J3, with experience in the charity sector, consumer brands, and the events industry. A graduate of the University of Sussex Business School, he combines a strong commercial grounding with a natural focus on building relationships. Away from work, Joshua is a keen rugby player and fan, and he now brings that same energy and team spirit to his role as an Origination Executive within J3’s sales team.
Josh brings two years of experience in the motor insurance industry, where he’s gained solid grounding in risk assessment, claims handling, and customer service. He also holds a degree in Sports Business Management, which adds to his adaptable and well-rounded skill set. Away from work, Josh keeps active with rugby, the gym, and Padel—sports that have helped him develop teamwork, discipline, and a strong competitive drive, all of which he brings to his professional role.
Alex brings over 12 years of experience in the professional sports industry, with a strong background in administration and client support. She has a natural eye for detail and enjoys working with data in a way that keeps things running smoothly. Alex thrives in collaborative environments and is passionate about helping others succeed - whether that’s supporting colleagues, clients, or athletes while always focusing on creating positive experiences and successful outcomes.
With a background in design and a sharp eye for detail, Lee brings a creative approach to after-sales support. With a proactive style and problem-solving mindset, he takes full ownership of every query and has a strong commitment to turning challenges into solutions