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Lefteris Kallou Lefteris Kallou


Lefteris Kallou LLB, MSc graduated from BPP University Law School in 2015 having studied Law (International Commercial Law).


In 2016, Lefteris completed the Legal Practice Course with Masters in Law, Business and Management at The University of Law, London Moorgate. Following this, Lefteris worked at HM Revenue and Customs within their Strategic Litigation department for over one year as a paralegal where he assisted on a variety of high-profile and value cases. Lefteris joined Protopapas LLP in March 2018 as a Trainee Solicitor before qualifying as a Solicitor in April 2020.


Areas of Practice

Lefteris has assisted with and undertaken work in various areas of law. Lefteris mainly deals with matters pertaining to Civil Litigation, ranging from Property Litigation to Commercial and Financial Disputes. He also undertakes work relating to Family, Private Client and Probate matters such as Matrimonial Proceedings, Wills, Administration of Estates and Contentious Probate issues.


Lefteris strives and is committed to achieving the best results for his clients. He always takes a confident and professional approach when dealing with his opponents and he is never shy to put forward his client’s position in clear and robust manner, always acting in their best interests.


Notable Transactions & Cases

  • Acting for debtor disputing the validity of a ‘Payment on Demand Clause’ in a Loan Agreement concerning a loan amount of over £100 million.
  • Defending High Court proceedings for a purported breach by a debtor of a Loan Agreement in the sum of £3.5 million.
  • Acting for commercial landlords and tenants as regards ending and renewing business tenancies, predominantly prime central London property; and in respect of: forfeiture of leases; rent arrears; other breaches of lease terms; and enforcement.
  • Successfully defending very acrimonious proceedings brought by a hostile landlord against its commercial tenant, a cafe, involving complex claims for breach of repair and other lease covenants, including alleged noise and odour nuisance, and including making a successful application for the claimant landlord to provide substantial security for the tenant’s costs following non-payment of which the claim was struck out shortly before trial with full costs payable by the claimant.



If you wish to contact Lefteris please call our main line number on 020 7636 2100 or send an e-mail to LefterisK@protopapas.co.uk

Be realistic, demand the impossible” – Che Guevara

Lefteris Kallou