Meet the Team



Aged 14, Mario showed a natural aptitude for enterprise while still at school, working alongside his father in the family property and catering business, he gained invaluable life skills and experience, which played an instrumental part in his later success.

Deciding to go it alone, Mario acquired and developed his first property aged 18 and he used the experience to expand his skills in planning, construction and housing, developing a wealth of contacts in the property & banking sector along the way.

Over the past 25 years Mario has continued to run a number of successful property businesses and in spite of the early 1990's recession, he has generated a self-made property portfolio worth in excess of £20m.

His instinctive ability to source an opportunity whilst adding value is fundamental, making him a true entrepreneur & property magnate.

In 2009, following another economic downturn, Mario founded Caridon Property Ltd, having identified a gap in the market to assist individuals hit by a troubled economy, using his infinite knowledge and experience as a landlord to pioneer one of the first rent guarantee schemes in London, assuring a reliable income for Landlords and a guarantor for vulnerable tenants who were struggling to find accommodation.

Caridon Property continues to thrive and is now part of the award-winning Caridon Group, a multi-million pound Property Development and Lettings Company, dedicated to serving the local communities they operate in.

A highly respected property entrepreneur, industry campaigner and dedicated family man, Mario continues to apply the same hands-on approach and determination to every project he undertakes. His passionate conviction towards social responsibility guides the vision of the Caridon Group, whilst pledging a commitment to create new opportunities and fairer housing for all.

His motto is “Always lead by example, believe in what you do and why you do it! ”.



Abbas graduated with a BA Hons in Accountancy and Finance in 2001 and within two years had sold his first successful business for a profit.

He grew up in an entrepreneurial family and after a short career in accounting Abbas felt he needed a broader challenge that could fulfil his appetite for growth & success. He moved into property management & grew his business to manage 150 properties and employed seven portfolio managers.

Abbas joined Mario at Caridon in 2009 where he took a fundamental role in structuring the business and helped develop the pioneering concept of guaranteed rent.

With expertise in management, negotiation, financial structuring, due diligence and development design, he has been instrumental in helping to maximise revenue and protect investment. He oversees the financial growth and operations of all the Group’s companies.

ROY LEDGISTER (Barrister) Group Executive Chairman


Roy is a qualified barrister with expertise in strategic legal and commercial advice across a range of sectors including telecoms, agriculture, property and pharmaceuticals. He set his own law firm up in 1998 working in both criminal and commercial law. He crossed to the Bar in 2001 and has been counsel to a diverse portfolio of clients and individuals including political groups and politicians, banking groups and media companies.

He guides and develops investment at Caridon and has played a key role in securing conditions for the expansion of the group.

SHERRELLE COLLMAN Commercial Business Director


Sherrelle joined Caridon Property Services in 2009 as a senior portfolio manager having previously worked as a housing coordinator for a registered charity.

After six years with Caridon Property Services she became Commercial Business Director at CLS and has been instrumental in developing the company’s overall commercial and communication strategy, whilst driving new business and partnership opportunities.

With her vast experience of the private rented sector and knowledge of housing within the welfare system, Sherrelle has been instrumental in creating the CLS range of services with landlords in mind.

A senior negotiator and decision maker, Sherrelle is well respected in the property sector.


Bill Irvine started his career in accountancy in the private sector. He then moved into local government and studied Public Administration & Administrative Law, specialising in adminstraive tribunals. He quickly became known as a very effective Welfare Rights Advocate. Later he became Head of Revenues, Benefits & Advice services at one of the UK’s largest councils. He was COSLA's representative to the DWP HB Standing Committee, Westminster. He left local Government in 2001 moving back into the private sector as MD of a Credit Management company specialising in the social sector. He did some voluntary Board Membership at SFHA and Trust HA Ltd until in May 2012 he decided to start offering his consultancy services to private & social landlords on a commercial footing.

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