top of page



Our Firm



Results Built on Experience

Lawson Clark & Oldman is a long-time Durham law firm which has been providing legal services to our community since 1951. Colin Oldman joined the firm as a partner in 2008. 

Our present home is located at 555 Kingston Road West, Ajax. We have built a solid reputation for providing expert counsel on all matters related to our core focus of Real Estate, Corporate, and Estate Planning law. While we employ the latest in technologies and procedures, the emphasis of the firm’s practice has remained unchanged over the past 60+ years. 

Our clients know that they can rely on Lawson Clark & Oldman to serve individuals, businesses and families while offering value far beyond the professional fees charged. 

Expect Excellent Service

At Lawson Clark & Oldman, every file is high profile. 

We distinguish ourselves through our accessible, service driven approach and our firm commitment to the success and satisfaction of our clients. 

As a result, Lawson, Clark & Oldman has enjoyed the trust and confidence of a great number of our clients for many years and in many cases, for multiple generations. 

You Have Spoken

There is a reason that Lawson Clark & Oldman has been voted the Reader’s Choice Award winner for Best Law Firm for eight consecutive years. 

Our most important recognition comes from our clients who appreciate the professional service and exceptional value we deliver in all that we do. 

We hope that we can be of service to you.

Our People



Colin has extensive experience in advising clients in all areas of real estate law, corporate and commercial law, and wills and estate administration. Colin’s clients include home buyers and sellers, commercial real estate developers, small and mid-sized business owners, and individuals with estate planning needs.


A native of Durham Region, Colin graduated from the Schulich School of Law at Dalhousie University in Halifax, Nova Scotia. Prior to that Colin completed his undergraduate degree in Commerce at the Queen’s University School of Business.


Colin brings the advantage of Bay Street expertise to his clients in the Durham region, having worked as a lawyer with a prominent national firm and having served as a management consultant to several Fortune 500 companies.


Outside the office, Colin devotes his time to his family. He is a father of four children, and stays busy and active with their many sports and activities.



(905) 683-2741  |


Practice Areas

Real Estate


Wills and Estates

Professional Associations & Memberships

Law Society of Upper Canada

Canadian Bar Association

Ontario Bar Association

Ajax Pickering Board of Trade

  • Twitter

Recent work highlights include:

  • Acted for several vendors in a land assembly sale to developer; 

  • Assisted client in corporate share acquisition to acquire commercial real estate properties; 

  • Advised ownership of a large franchise on the successful sale of franchise stores; 

  • Worked with the owners of various successful family enterprises to plan for succession of the business in a manner that maximized value for the current and future owners while minimizing tax implications; 

  • Advised entrepreneurs on estate planning matters including income and capital gains splitting through the use of family trusts; 

  • Participated in a corporate restructuring while successfully addressing succession planning, tax efficiencies and income splitting. 



Zuzanna joined Lawson Clark & Oldman as an associate lawyer in September 2019 and has become an integral part of the firm. She received her Juris Doctor degree from the University of Ottawa and completed her undergraduate studies at McGill University, graduating with academic distinction.

While Zuzanna assists the firm in each of its core practice areas, her primary focus is on corporate and commercial law, where she is a trusted legal advisor to solo entrepreneurs, real estate investors, businesses and commercial landlords and tenants.


Her client-centred approach, combined with her developed knowledge and expertise, enables her to provide business clients with strategic, practical and tailored business law advice and cost-effective legal solutions. 

Zuzanna has gained significant legal and industry experience in both private practice and public sector settings in Toronto and Ottawa. She has worked for a Crown Corporation advising on corporate governance issues, assisted in creating a legal groundwork for a startup company’s business operation, summered at a busy Bay Street litigation firm specializing in product liability, insurance and commercial law, and articled at a litigation firm in Toronto where she advocated for her clients before the Superior Court of Justice and Small Claims Court. 

In her spare time, Zuzanna enjoys playing squash, staying active in the community and spending time with family and her chocolate labrador Bedo. 

(905) 683-2741  |

  • LinkedIn



Ariana was called to the Ontario Bar in August 2020.  She received her Juris Doctor in 2018 from Thompson Rivers University – Faculty of Law, in British Columbia. She graduated with an Honours Bachelor of Arts from the University of Toronto, St. George Campus.

During her time in law school, she was awarded the Society of Trust and Estate Practitioners Prize for Wills & Estates, the Dean's Course Prize for top academic achievement in Wills & Estates as well as the Dean's Course Prize for top academic achievement in Designing Legal Expert Systems.

Ariana previously practiced at a small general firm in the Greater Toronto Area. Ariana joined Lawson, Clark & Oldman as an associate lawyer in the Fall of 2021.

While Ariana assists in each of the firm's practice areas, her preferred area is Wills & Estates. She takes a client-first approach, with a commitment to delivering practical, individualized tailored advice to each client and consistent quality service.

(905) 683-2741  |

bottom of page