Mr. Jimmy Mrosso


Jimmy Mrosso is a lawyer practicing law in Tanzania with more than 11 years of experience from both the law firms and Tanzania Revenue Authority (TRA). He is now the Managing Partner Lexicon Attorneys Law Company. He has in-depth correct knowledge and experience in tax law, litigation, corporate/commercial transactions, banking, insurance, patent & trademark, dispute resolution techniques, negotiating techniques, company secretarial functions, legal research, drafting and advisory services, licensing, regulatory compliance and stakeholder management, merger and acquisitions and project management, just to mention a few.

Jimmy started his career at the University of Dar es Salaam where he earned his LL.B (Hons).Jimmy joined one of the largest corporate law firms in Tanzania known as Epitome Advocates which was later merged to Rex Attorneys as an intern for six months where he gained an enormous experience in corporate and banking matters. He later joined Octavian and Company Advocates as Legal Officer wherehe gained an enormous experience in insurance and land matters,and later promoted as a Legal Counsel. While at Octavian he also worked on part time basis with Abenry Advocates before joining it full time before he shortly moved to Tanzania Revenue Authority. At Abenry he gained enormous experience on Patent, Trademarks and investment matters.

At the firms Jimmy was responsible with providing legal advisory services to the client companies on a wide range of issues pertaining to the business, insurance, patent and trademark,labour laws and corporate matters, conducting researches and providing correct interpretations of legal provisions, drafting pleadings, legal opinions and submissions, drafting and reviewing various legal documents such as Memorandum of Understanding, contracts and agreements, appear in courts of law, tribunals and Commission for Mediation and Arbitration to facilitate litigation of cases, attending clients by listening to their needs and give them spontaneous advises accordingly, providing corporate secretarial services to client companies which included advice on compliance to existing laws, coordination and facilitation of meetings, recording proceedings of meetings and ensuring proceedings are well documented and stored, registering companies, debentures and loan securities with relevant authorities and carrying out due diligence on companies and property and prepared reports on the same.

At TRA where he worked for nine (9) years, JImmy have added much experience on tax law and taxation generally,tax litigation, drafting tax laws and regulations, experience on regional/international laws, and many other financial laws, labour law and corporate governance issues, initiating and/or implementing various regional projects (eg. COMESA and EAC Customs Single Bond Scheme), negotiations and dispute resolutions, drafting pleadings, contracts, MoUs with International organizations and other vendors, work closely with private sectors and liaise the Institution with other government agencies, arranging workshops and meetings, representing the Authority on several meetings and workshops in and outside the country, decision making, licensing committee, training, HR recruitment committee, revenue projection, able to work with different people of different professionalism and able to interact with Senior people from different Companies and financial institutions.

Jimmy earned his Master of Laws Degree (LL.M) majoring in Tax and International Trade and Finance Laws from the University of Dar es Salaam in November, 2012. She is married and blessed with kids. Jimmy further pursued short courses including Customs Basic Course (Jan – March, 2007 at TRA’s Instituteof Tax Administration (ITA), Modern Tax Administration Course (20 May – 25 June 2011, University of Beijing, China), Training Trainers Course ( one week course, Harare, Zimbabwe in 2010), WCO One week Course on Revised Kyoto Convention on Harmonization and Simplifications of Customs Procedures (RKC), Nairobi, Kenya 2010; One week course on Customs Valuation, Classification and Rule of Origin in 2012 at ITA, Total Tax Person Course, 2007 at ITA and Customer Care Course, 2013 at ITA.

At Lexicon Attorneys Law Company, Jimmy is leading the team of Tax Expert Attorneys, Insurance and Litigation Division. He is also responsible with overall management of day to day activities of the firm until December, 2017.

Memberships         Tanganyika Law Society (TLS)

East African Law Society (EALS)