Business advisory services that
turn plans into progress
The right advice
can make all the
difference
In any business, the right advice can make all the difference.
Our Business Advisory specialists provide the strategic guidance and practical support you need to make your vision a reality. We work alongside your stakeholders to implement meaningful change, enabling smooth transformation and measurable improvements in performance.
Strategic Planning
We work closely with you to understand your ambitions and turn them into clear, actionable strategies for growth. And because real success takes time, we’re here with the right advice and support through every challenge and opportunity along the way.
How we champion your business
Create realistic roadmaps:
Helping you realise your long term business objectives and when things change, we help you adapt and move forward with confidence
Deliver measurable results:
Performance improvement initiatives with clear bottom-line impact and a focus on implementation.
Build operational resilience:
Bespoke strategies that enhance efficiency and adaptability so you can navigate change with confidence.
Work with your future in mind:
We partner with you over the long term, helping you adapt and move forward, wherever you are on your journey.
Your Business Advisory Champions
There are plenty of ways Sumer can make a difference to your business.
But if we had to pick one, it’s our people. With partner-led services from local experts in every region, we offer national scale and personal support from people who understand your sector and your community. From succession planning and exits to international growth, our specialists are here to help you make the big decisions with confidence.

Esther Hancock
Midlands
Esther Hancock
Esther joined DPC in 2003 and became a director in November 2013, specialising in tax. Esther qualified as a Chartered Certified Accountant in 1999 and qualified as a Chartered Tax Advisor in 2002. She also holds the STEP qualification (Society for Trust and Estate Planners).
She has a wealth of experience, working in accountancy practice for many years.
Esther specialises in providing tax advice and planning to small and medium sized owner-managed businesses and high net worth clients both at a corporate and personal level on all areas of tax, including income tax, corporation tax, capital gains tax and inheritance tax. She provides technical tax knowledge and support to the office.
She has been involved in mergers and acquisitions and is experienced in corporate restructuring, and employee share schemes.

Lucas Markou
Midlands
Lucas Markou
Email: LucasMarkou@jerroms.co.uk

Russell Nathan
London
Russell Nathan
Email: nathan@hwfisher.co.uk

Adrian Patton
Northern Ireland
Adrian Patton
Email: adrian.patton@sumerni.co.uk

Stephen Slater
North East
Stephen Slater
Stephen joined RMT in 1993 shortly after qualifying, has been a partner since 2002 and as of 2025 is the Managing Director. He is responsible for the development of RMT’s outsourced services, particularly the introduction of VAO, and was instrumental in the creation of RMT’s sister company; RMT Technology.
Stephen is currently President of the International Association of Accounting Innovation and Technology Consultants (IAAITC), who work with BERR and ENISA and is part of the ENISA European Working Party for IT Risk Management Security. In addition, Stephen is a Governor of Thomas Bewick School which specialises in educating children with Autism.
Email: stephen.slater@r-m-t.co.uk

Simon Tombs
South West
Simon Tombs
As Managing Partner I head up the Monahans business.
I head our Professional Practices team and advise Solicitors and a range of owner-managed companies on all aspects of their businesses and practices.
I love to enable my clients to reduce costs, minimise the administration they undertake and allow them to have up to date information on their businesses, by providing our Monahans cloud accounting service. Depending on their needs, we will use the most appropriate packages, including FreeAgent and Xero as a part of our Business Bureau offering.
My background
I have worked for a number of professional firms ranging from large internationals to small local organisations and I also had a spell away from the accountancy profession in industry, which puts me in a great position to understand what our clients are looking for from their accountant.
Outside of work, my two teenage daughters keep me very busy. I also have a keen interest in property renovation and DIY in addition to car restoration. I like to get my hands dirty and do something slightly different than my day job.
- Professional practices and small business
- Advising solicitors and their practices
- Owner managed businesses of all sizes
- Cloud accounting
- Payroll services
- General accountancy services
Email: simon.tombs@monahans.co.uk