

Andrew Costin - Principal Lawyer
One of Atlantic Canada's
preeminent business lawyers.
Providing elite, strategic legal services in corporate and commercial law.
Its simple, experience and
capability.Its simple, experience
and capability.
Costin & Associates delivers high-level legal strategy for business leaders and high-net-worth clients across Atlantic Canada. Our modern, discreet approach is built on trust, clarity, and unmatched experience navigating complex corporate and commercial matters.
Strategic Legal Services Built for Modern Business
Corporate/Commercial
Andrew has acted as trusted counsel to some of New Brunswick and Atlantic Canada's largest private companies on a wide array of diverse transactions and financings. He has also acted as both New Brunswick and Canadian Counsel to several publicly traded companies doing business in New Brunswick and throughout Canada. His experience as a corporate practitioner includes:
- Testifying as an expert witness before the Senate of Canada on the matters of taxation of privately held corporations and associated tax planning strategies impacted by legislative amendments;
- Acting as lead counsel on multi-jurisdictional acquisitions in a wide array of industries and fields;
- Counsel to some of New Brunswick's largest real estate developers and construction companies;
- Providing tax planning and succession planning to many established, multi-generational owner/operated businesses;
- Acting for a wide array of startups and established companies on equity raises and securities matters
Remote Chief Legal Officer Services
Andrew has acted in an advisory role for both startups and established businesses leveraging his experience in board governance, company formations, mergers and acquisitions, corporate finance and securities matters. For clients regularly seeking his advice and services, ongoing Chief Legal Officer arrangements can be made to allow for unmatched continuity and appropriately scaled legal guidance throughout the life cycle of any business.
Private Wealth Counsel
Throughout the years as a corporate practitioner, advising on tax structuring and succession planning to individuals and family offices has become a core part of Andrew and his team's practice. We can work collaboratively with advisors, and across jurisdictions, to make certain optimal legal, wealth preservation and estate planning methods are implemented and in place regardless of one's tax picture.
Corporate Insolvency and Risk Management
Andrew has advised debtors, creditors and stakeholders on BIA and CCAA matters and is regularly called upon to advise on a wide array of insolvency matters. Of note, Andrew was successful, as lead counsel, on one of the rare instances of a bankruptcy being set aside in Canada in Briggs (Re) 2020 NLSC 159. His experience as a corporate practitioner continues to provide value to his clients seeking advice, and if necessary, vigorous representation, on insolvency matters.
Business Mediations
Years as a dealmaker has made Andrew, when it matters, a peacemaker. Andrew has been called upon to provide objective dispute resolution services on shareholder agreements, post-closing transactional disputes, buyout agreements and various other matters of commercial note. His experience, as a Vice Chair of the New Brunswick Assessment and Planning Appeal Board, has led to him authoring dozens of decisions involving development, valuation and tax matters.
General Legal Services
Andrew's team provides personal legal services to clients in all aspects of law including real estate, estate planning and select litigation matters.

Strategic Legal Services
Built for Modern Business
Corporate/Commercial
Andrew has acted as trusted counsel to some of New Brunswick and Atlantic Canada's largest private companies on a wide array of diverse transactions and financings. He has also acted as both New Brunswick and Canadian Counsel to several publicly traded companies doing business in New Brunswick and throughout Canada. His experience as a corporate practitioner includes:
- Testifying as an expert witness before the Senate of Canada on the matters of taxation of privately held corporations and associated tax planning strategies impacted by legislative amendments;
- Acting as lead counsel on multi-jurisdictional acquisitions in a wide array of industries and fields;
- Counsel to some of New Brunswick's largest real estate developers and construction companies;
- Providing tax planning and succession planning to many established, multi-generational owner/operated businesses;
- Acting for a wide array of startups and established companies on equity raises and securities matters
Remote Chief Legal Officer Services
Andrew has acted in an advisory role for both startups and established businesses leveraging his experience in board governance, company formations, mergers and acquisitions, corporate finance and securities matters. For clients regularly seeking his advice and services, ongoing Chief Legal Officer arrangements can be made to allow for unmatched continuity and appropriately scaled legal guidance throughout the life cycle of any business.
Private Wealth Counsel
Throughout the years as a corporate practitioner, advising on tax structuring and succession planning to individuals and family offices has become a core part of Andrew and his team's practice. We can work collaboratively with advisors, and across jurisdictions, to make certain optimal legal, wealth preservation and estate planning methods are implemented and in place regardless of one's tax picture.
Business Mediations
Years as a dealmaker has made Andrew, when it matters, a peacemaker. Andrew has been called upon to provide objective dispute resolution services on shareholder agreements, post-closing transactional disputes, buyout agreements and various other matters of commercial note. His experience, as a Vice Chair of the New Brunswick Assessment and Planning Appeal Board, has led to him authoring dozens of decisions involving development, valuation and tax matters.
General Legal Services
Andrew's team provides personal legal services to clients in all aspects of law including real estate, estate planning and select litigation matters.
Corporate Insolvency and Risk Management
Andrew has advised debtors, creditors and stakeholders on BIA and CCAA matters and is regularly called upon to advise on a wide array of insolvency matters. Of note, Andrew was successful, as lead counsel, on one of the rare instances of a bankruptcy being set aside in Canada in Briggs (Re) 2020 NLSC 159. His experience as a corporate practitioner continues to provide value to his clients seeking advice, and if necessary, vigorous representation, on insolvency matters.


For General Inquiries: admin@costinandassociates.com
Jana Mallory, Office Manager: jana@costinandassociates.com
Andrew Costin, Principal Lawyer: andrew@costinandassociates.com
Reception: 506-717-6001
Fax: 506-616-3709
53 King Street, Suite 400,
Saint John NB E2L 1G5
