Diane Tsonos, Estate Planning Attorney in the United States
Over 43 years of legal practice · focused on Estate Planning and Tax · 5.0/5 rating from 1 verified client review
Practicing estate planning since 1983.
- 43+
- Years practicing
- 5.0 ★
- 1 client review
- 1
- Bar admission
Practices in
Are you Diane Tsonos?
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Quick answer
Diane Tsonos is an attorney based in Montreal, QC. The practice focuses on Estate Planning and Tax. Diane has over 43 years of legal experience. Rated 5.0 out of 5 from 1 client review.
- Based in
- Montreal, QC
- Experience
- over 43 years
- Known for
- Estate Planning · Tax
- Handles Estate Planning and Tax matters from Montreal, QC.
- Over 43 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Diane Tsonos: Diane Tsonos is an attorney based in Montreal, QC. The practice focuses on Estate Planning and Tax. Diane has over 43 years of legal experience. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Diane's practice areas in the U.S.
Diane concentrates on estate planning and tax. Each area below outlines the kind of case Diane handles, typical outcomes to expect, and how the intake process starts.
Estate Planning cases nationwide
Diane takes estate planning 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 Diane agrees to represent you.
Tax cases nationwide
Diane takes tax 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 Diane agrees to represent you.
Biography
Diane Tsonos, estate planning attorney serving the U.S.
Diane Tsonos is an attorney based in Montreal, QC. The practice focuses on Estate Planning and Tax. Diane has over 43 years of legal experience. Rated 5.0 out of 5 from 1 client review. Diane works from the U.S. and takes on estate planning matters across the region.
Diane Tsonos is a lawyer practicing tax, estate planning. Diane received a B.A. degree from Carleton University in 1983, and has been licensed for 43 years. Diane practices in Montreal, QC.
Working with Diane on a estate planning matter
Diane Tsonos is a lawyer practicing tax, estate planning. Diane received a B.A. degree from Carleton University in 1983, and has been licensed for 43 years. Diane practices in Montreal, QC.
Clients Diane works with
Diane reviews new inquiries case-by-case for estate planning and tax matters in the United States.
Credentials
Credentials — where Diane studied and practices
Université de Montréal
LL.B. · 1982
Carleton University
B.A. · 1983
Jurisdictions
Diane's state bar admissions
Quebec
1983 · ACTIVE
Diane studied at LL.B. in Université de Montréal and B.A. in Carleton University.
Law school and academic background
Diane completed LL.B. in Université de Montréal and B.A. in Carleton University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Diane runs in the state is where that training gets applied to real client questions.
Recognition
Diane's legal honors and published work
Diane has received 1 formal recognition from bar associations, industry bodies, and peer-review services.
AV Preeminent
Legal awards and honors
AV Preeminent.
Locations
Diane Tsonos's office in Montreal
Diane's primary office is at 1981 McGill College Ave., Montreal, QC, H3A 0G6. In-person meetings are by appointment; a phone intake usually comes first.
Client feedback
Client reviews of Diane Tsonos — 5.0/5 rating from 1 verified client review
Every review below is from a verified client of Diane. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing estate planning attorneys in your area.
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Diane Tsonos claims this profile.
Read all reviewsHiring guide
How to hire Diane Tsonos — what to expect in your first consultation
Working with a new estate planning attorney should feel structured. Here's how the first two conversations with Diane usually go, from the moment you request a consult to the day representation begins.
Consultation formats and pricing
Diane charges for the initial consult. That fee is credited toward representation if you retain Diane'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; Diane will tell you what matters and what doesn't.
Questions to ask a estate planning attorney in your state
A short list to run through before you commit: How many estate planning 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 Diane
Diane discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in estate planning practice — ask which fits.
Hourly rates, contingency fees, and flat-fee options
Every estate planning 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. Diane confirms the model in the engagement letter before any work starts.
Payment methods and payment plans
Diane's office accepts standard payment methods. Ask about payment plans if the retainer is a stretch — many estate planning practices work with clients on structured schedules.
Frequently asked
Frequently asked questions about Diane Tsonos
How much does it cost to hire Diane for a estate planning case?
Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Diane walks through the likely range during the consult so there are no surprises.
Does Diane offer a free consultation?
Diane charges for the initial consult; that fee is credited toward representation if you retain Diane's office. Some estate planning attorneys offer free consults — check Diane's current terms during booking.
How long do estate planning cases in this state typically take?
Simple estate planning 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. Diane gives a realistic estimate for your facts at the consult — vague answers here are a red flag.
Can Diane take my case if I'm outside the area?
Diane evaluates matters case by case. If the venue is outside Diane'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 Diane?
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. Diane will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.
Is Diane accepting new estate planning clients right now?
Diane's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.