David A. Ziegler, Business Attorney in the United States
focused on Business and Litigation
Dedicated business attorney.
Practices in
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Quick answer
David A. Ziegler is an attorney based in Toronto, ONTARIO. The practice focuses on Business and Litigation.
- Based in
- Toronto, ONTARIO
- Experience
- attorney
- Known for
- Business · Litigation
- Handles Business and Litigation matters from Toronto, ONTARIO.
- Recognized with Best Lawyers in America — Corporate and Commercial Litigation (2026).
About David A. Ziegler: David A. Ziegler is an attorney based in Toronto, ONTARIO. The practice focuses on Business and Litigation.
Areas of practice
David's practice areas in the U.S.
David concentrates on business and litigation. Each area below outlines the kind of case David handles, typical outcomes to expect, and how the intake process starts.
Business cases nationwide
David takes business matters nationwide. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before David agrees to represent you.
Litigation cases nationwide
David takes litigation matters nationwide. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before David agrees to represent you.
Biography
David A. Ziegler, business attorney serving the U.S.
David A. Ziegler is an attorney based in Toronto, ONTARIO. The practice focuses on Business and Litigation. David works from the U.S. and takes on business matters across the region.
David Ziegler’s robust civil litigation and arbitration practice encompasses business-critical commercial and financial disputes, class actions, product liability matters, construction matters (including adjudications), and disputes requiring international arbitration. His vast experience acting for both Canada- and US-based companies is sought after for domestic and cross-border disputes, spanning a broad range of industries including mining, rail, professional services, insurance, banking and finance, accounting, manufacturing, and construction. He is also routinely trusted to advise clients on the enforcement and recognition of foreign judgments in Canada.
A dual-qualified lawyer in New York and Ontario, David leverages experience in securities litigation and general commercial disputes gained while practicing with a leading international law firm in New York, prior to joining Fasken.
Adept in managing large and complex e-Discovery projects, David also advises clients on best practices related to document preservation and collection, the preparation and circulation of litigation holds, and the use of modern data processing tools. He leads an initiative at Fasken to ensure that the Firm maintains and provides a state-of-the-art e-Discovery process for clients.
Working with David on a business matter
David Ziegler’s robust civil litigation and arbitration practice encompasses business-critical commercial and financial disputes, class actions, product liability matters, construction matters (including adjudications), and disputes requiring international arbitration. His vast experience acting for both Canada- and US-based companies is sought after for domestic and cross-border disputes,…
Clients David works with
David reviews new inquiries case-by-case for business and litigation matters in the United States.
Recognition
David's legal honors and published work
David has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
Best Lawyers in America — Corporate and Commercial Litigation
2026
Legal awards and honors
Best Lawyers in America — Corporate and Commercial Litigation (2026).
Locations
David A. Ziegler's office in Toronto
David's primary office is at 333 Bay Street, Suite 2400, Toronto, Ontario. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of David A. Ziegler
David has not yet collected verified client reviews on LawyersListed. Reviews here are all from confirmed clients; anonymous ratings are moderated out.
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Schedule your consultationHiring guide
How to hire David A. Ziegler — what to expect in your first consultation
Working with a new business attorney should feel structured. Here's how the first two conversations with David usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
David charges for the initial consult. That fee is credited toward representation if you retain David's office.
What to bring to your first meeting
Bring any documents you already have — police reports, medical records, filed pleadings, correspondence from an insurer, a copy of the contract at issue. If you're not sure, err on the side of bringing everything; David will tell you what matters and what doesn't.
Questions to ask a business attorney in your state
A short list to run through before you commit: How many business matters have you handled in the last year? What's your fee structure? Who else in the office will work on this? What's your realistic estimate of timeline and range of outcomes? How do I reach you between meetings?
Fees & payment
Fees, payment methods, and consultation options for David
David discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in business practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every business matter is priced differently. Simple document review might be a flat fee. Injury litigation is often contingency. Complex commercial disputes usually run hourly with a retainer. David confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
David's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many business practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about David A. Ziegler
How much does it cost to hire David for a business case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. David walks through the likely range during the consult so there are no surprises.
Does David offer a free consultation?
David charges for the initial consult; that fee is credited toward representation if you retain David's office. Some business attorneys offer free consults — check David's current terms during booking.
How long do business cases in this state typically take?
Simple business matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. David gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can David take my case if I'm outside the area?
David evaluates matters case by case. If the venue is outside David's regular jurisdictions, the intake call will confirm whether direct representation or a referral makes more sense.
What should I bring to my first meeting with David?
Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. David will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is David accepting new business clients right now?
David's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.