Loni da Costa
About Loni da Costa
Loni da Costa is a lawyer based in Calgary, AB and has been recognized in The Best Lawyers in Canada™ since 2022. Loni da Costa is recognized in the following practice areas:
- Calgary, Alberta
- Corporate and Commercial Litigation
- Intellectual Property Law
Current Firm: Borden Ladner Gervais LLP
Location: Calgary, AB
It takes just a few minutes to optimize your profile for clients looking to engage and lawyers who are ready to refer.
Activate your profile and highlight why your peers recognized in Best Lawyers today.
Nearby Lawyers
Enrique has over 18 years of experience helping clients navigate family law disputes with clarity and confidence. Before becoming a lawyer, he was a high school teacher—an experience that still shapes his approach to his legal practice today. Whether guiding clients through the legal process or advocating in court, Enrique brings the heart of a teacher to everything he does. Clients meeting with Enrique can always expect a bit of “homework.” He believes strongly that clients...
Janel Young is co-head of the Corporate Group in Calgary. Her practice focuses on general corporate matters, mergers and acquisitions and corporate finance and securities. She acts for private and public companies on a broad range of matters including public and private offerings of securities, initial public offerings, asset and share purchase and sale transactions, plan of arrangement transactions and corporate reorganizations. She has particular expertise advising private equity firms and ...
Prior to and during the course of attending University, Brad was involved in the residential construction industry. After obtaining his law degree in 1989, Brad articled and practiced with Code Hunter Wittmann. In 1998 he joined the litigation team at Donahue Wells as a partner. In 2010, Brad joined Carbert Waite LLP. Brad has extensive experience as a litigator in a number of areas (with an emphasis on insurance related litigation, product liability litigation, aviation, and commercial litig...
Brad Ashkin is a partner in the Corporate Group whose broad transactional practice focuses primarily on mergers and acquisitions, corporate finance and securities and complex commercial arrangements. He regularly acts for Canadian and international clients with interests in oil and gas, agribusiness, finance and infrastructure. Brad has acted on acquisitions and dispositions of public companies, and for buyers and sellers of private businesses and individual assets. He also acts for sponsors ...
Wayne Fedun has practised oil and gas law in Canada and internationally since 1992. He has negotiated and prepared a variety of energy industry agreements, including joint venture agreements, project development agreements, project finance agreements, facility agreements, engineering, procurement and construction agreements, transportation agreements, marketing agreements, Canadian East Coast off-shore agreements and various South American and Central Asian agreements. These agreements relate...
Ben Hudson is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. Ben, who practices law in Calgary, Alberta, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ben is held by other top lawyers in the same geographic and legal practice area.
Gulu Punia is a leading commercial and employment litigator in Alberta, representing clients at all levels of Court in Alberta, including as lead counsel at trial before the Court of Queen's Bench. From shareholder disputes and oppression remedies, to fraud claims and claims for breach of contract, Gulu acts for clients in obtaining extraordinary remedies such as attachment orders and Anton Piller orders in cases involving fraud.
Matthew Longstaff has extensive experience advising investment banks, sovereigns, private equity houses and corporate clients in a broad range of cross‑border debt financings, including high‑yield bonds, leveraged bank finance, syndicated and bilateral bank financings, project financings, convertible and exchangeable bonds, sovereign bonds, hybrid capital issuances, consent solicitations, and securitizations, as well as advising on restructurings and in distressed debt scenarios. In addition,...
Clara is a leading energy regulatory lawyer who specializes in the power sector. She is currently serving as head of the firm's Litigation & Dispute Resolution Group in B.C., managing the litigation departments in those offices. Clara advises clients on a broad range of matters before regulatory boards and the courts, including market rules and compliance, long-term resource planning, electricity export permits, international power line approvals, rate design, and capital project permitti...
Brad practices as a Mediator, Arbitrator and Collaborative lawyer. He is a partner with the family law firm of Moe Hannah LLP in Calgary, Alberta. His practice assists clients in negotiating out-of-court settlements, mediation, collaborative law, arbitration, and litigation. Brad teaches Negotiation as a sessional at the University of Calgary’s Faculty of Law. He was an invited panelist for LESA on Advanced Matrimonial Property issues and Mediation. Brad completed his LLB at the Univers...
Explore and Learn
The Family Law Loophole That Lets Sex Offenders Parent Kids
by Bryan Driscoll
Is the state's surrogacy framework putting children at risk?
Unenforceable HOA Rules: What Homeowners Can Do About Illegal HOA Actions
by Bryan Driscoll
Not every HOA rule is legal. Learn how to recognize and fight unenforceable HOA rules that overstep the law.
Best Lawyers 2026: Discover the Honorees in Brazil, Mexico, Portugal, South Africa and Spain
by Jamilla Tabbara
A growing international network of recognized legal professionals.
Holiday Pay Explained: Federal Rules and Employer Policies
by Bryan Driscoll
Understand how paid holidays work, when employers must follow their policies and when legal guidance may be necessary.
Can a Green Card Be Revoked?
by Bryan Driscoll
Revocation requires a legal basis, notice and the chance to respond before status can be taken away.
What Is the Difference Between a Will and a Living Trust?
by Bryan Driscoll
A practical guide to wills, living trusts and how to choose the right plan for your estate.
US Tariff Uncertainty Throws Canada Into Legal Purgatory
by Bryan Driscoll
The message is clear: There is no returning to pre-2025 normalcy.
New Texas Family Laws Transform Navigating Divorce, Custody
by Bryan Driscoll
Reforms are sweeping, philosophically distinct and designed to change the way families operate.
The 2026 Best Lawyers Awards in Chile, Colombia and Puerto Rico
by Jamilla Tabbara
The region’s most highly regarded lawyers.