When Disputes Become Critical, You Don’t Need a Mediator. You Need an Expert.
I provide strategic intervention for housing associations, local authorities and corporate clients, specialising in complex property and housing disputes as well as wider governance and organisational matters..
For over two decades, I have operated at the sharp end of the UK’s property and housing sectors. I am the person organisations call when a dispute is escalating beyond control, when litigation seems inevitable, or when a situation requires absolute discretion and a steady hand. My work is not about finding a middle ground. It is about engineering a resolution. I do this through a blend of strategic mediation, sector-specific consultancy and senior strategic leadership support, grounded in deep property and housing expertise.t
What I Do
Clarity. Structure. Better Outcomes.
Strategic Mediation
Civil and commercial mediation specialising in complex property, housing and contract disputes, delivered with a strong understanding of commercial, organisational and reputational considerations. My approach is designed to resolve matters efficiently while avoiding the cost, risk and disruption of litigation. Mediations are conducted in person or online.
Strategic Consultancy
Senior-level advisory consultancy for housing associations, local authorities and property-focused organisations on governance, risk, compliance and dispute prevention. This work is advisory rather than operational, focused on helping leadership teams identify structural vulnerabilities, strengthen decision-making and reduce the likelihood of disputes escalating into formal proceedings.
Deputising & Operational Support
Deputising support for housing associations, local authorities and property-focused organisations during periods of absence, transition, organisational pressure or dispute escalation. This involves stepping in at appropriate levels to provide continuity, hands-on support and experienced judgement, working alongside existing teams to maintain momentum and stability without assuming statutory or permanent roles.
Why Clients Choose Cosil Solutions
Proven Methodology
The R.E.S.O.L.V.E. Framework provides a clear, structured approach to navigating complex disputes and organisational challenges. It brings consistency, rigour and decision-making clarity to situations where stakes are high and outcomes matter.
Housing and Property Specialists
Deep, hands-on experience across housing associations, local authorities and property-focused organisations. This sector insight ensures disputes, risks and decisions are handled with a clear understanding of operational, regulatory and reputational realities.
Award-Winning Service
Recognised for delivering strategic mediation and consultancy that supports robust outcomes for organisations operating in complex and high-pressure contexts. Awards reflect approach and impact, not volume or scale.
Risk and Dispute Management
Support that helps organisations identify exposure early, understand options clearly and take proportionate action before issues escalate into formal disputes, litigation or organisational disruption.
Integrated Service Delivery
Mediation, consultancy and deputising delivered as standalone services or combined where matters are complex, sensitive or evolving. This flexibility allows support to adapt as situations change.
Timely Outcomes
A pragmatic focus on progress and resolution. Most matters move forward within weeks rather than months, reducing uncertainty, cost and organisational distraction.
Cosil Solutions vs. Litigation
| Aspects | Litigation / Court | Cosil |
|---|---|---|
Average Cost | £5,000 to £25,000+ | From £1,200 per party (mediation) or £220 per hour (consultancy) |
Time to Resolve | 12 to 24 months | 4 to 8 weeks |
Decision Control | Judge decides | You stay in control |
Privacy | Public record | Confidential and without prejudice |
Process Style | Adversarial and formal | Structured, calm, collaborative |
Relationship Impact | Often damages trust | Preserves communication and co-operation |
Focus | Ends at judgment | Builds understanding and prevention for future |
A recent example of how a structured, impartial approach helped resolve a complex property dispute efficiently and professionally.
Serving London and the UK
Cosil Solutions supports organisations across London and the UK, working primarily with housing associations, local authorities, property-focused organisations and legal teams.
Services are delivered in person or online, allowing support to be provided wherever it is most effective.
Who We Work With
Cosil Solutions works with housing associations, local authorities, property-focused organisations and legal teams, as well as individuals involved in complex or high-stakes property and housing matters. Our clients operate across the UK and engage us where disputes, risk or organisational pressure require experienced, impartial and commercially aware support.
I had the opportunity to work with Insley Ettienne on a complex probate matter involving a leasehold property with no identified next of kin. Insley took the lead on the entire process... She demonstrated clarity, initiative, and sound professional judgement throughout. It was clear that Insley was driving the resolution forward, balancing risk and time sensitivity with confidence and expertise. Her leadership and ability to navigate complex legal frameworks made a significant impact on the outcome of the case. A trusted and highly capable professional, I would welcome the opportunity to work with her again on any high-stakes or sensitive matter.
Martin Olomofe MBA MRICS
Start With Clarity
Understand your position, identify risk and explore options before decisions are made. Our Readiness Assessment and supporting resources are designed to help organisations gain clarity and prepare for effective next steps.
See What Our Clients Have To Say
In the voice of our valued clients lie the testament to Cosil Solution’s commitment to transformative care.
I worked with Insley at Wandle Housing Association. I found Insley to be highly professional was a vast knowledge of leasehold tenures. I have found Insley to be solution-focused with a high-level of customer care; I found her to be very supportive as a colleague and would welcome the opportunity to work with her again.
I worked with Insley at Family Mosaic and found her to be very knowledgeable and passionate in all aspects of her role. Insley is a professional and delivered her services deligently and efficiently.
I am so grateful for Cosil Solutions support in handling my property dispute in a quick and professional manner. They were supportive, friendly, and remained unbiased throughout the whole process. I would not hesitate to use them in the future and highly recommend them.
Having worked with Insley at Family Mosaic as well as another large housing association, I am able to say that she is far one of the most knowledgeable individuals I have worked with in the field. She taught me a great deal about the sector, property management, and various issues surrounding property law. It has always always been a pleasure working with Insley. I would not hesitate in recommending her expertise to any housing organisation.