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Nelson Tonnar Castellano, Business Attorney in Tampa, Florida

Over 34 years of legal practice · focused on Business, General, and Health Care · 5.0/5 rating from 1 verified client review

ShareholderatTrenam Law

Tampa, FL

Practicing business in Tampa since 1992.

34+
Years practicing
5.0 ★
1 client review
3
Bar admissions

Are you Nelson Tonnar Castellano?

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Quick answer

Nelson Tonnar Castellano is a shareholder based in Tampa, FL. The practice focuses on Business, General, and Health Care. Nelson has over 34 years of legal experience. Currently practicing at Trenam Law. Rated 5.0 out of 5 from 1 client review.

Based in
Tampa, FL
Experience
over 34 years
Known for
Business · General · Health Care
  • Handles Business, General, and Health Care matters from Tampa, FL.
  • Over 34 years of practice as a licensed attorney.
  • Recognized with AV Preeminent.

About Nelson Tonnar Castellano: Nelson Tonnar Castellano is a shareholder based in Tampa, FL. The practice focuses on Business, General, and Health Care. Nelson has over 34 years of legal experience. Currently practicing at Trenam Law. Rated 5.0 out of 5 from 1 client review.

Areas of practice

Practice areas handled by Nelson Tonnar Castellano

Nelson concentrates on business, general, health care, ip, and securities. Each area below outlines the kind of case Nelson handles, typical outcomes to expect, and how the intake process starts.

Business cases in Tampa, Florida

Nelson takes business matters in Tampa, Florida. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Nelson agrees to represent you.

General cases in Tampa, Florida

Nelson takes general matters in Tampa, Florida. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Nelson agrees to represent you.

Health Care cases in Tampa, Florida

Nelson takes health care matters in Tampa, Florida. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Nelson agrees to represent you.

IP cases in Tampa, Florida

Nelson takes ip matters in Tampa, Florida. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Nelson agrees to represent you.

Securities cases in Tampa, Florida

Nelson takes securities matters in Tampa, Florida. Typical engagements include intake calls to scope the issue, review of any records or filings you already have, and a written strategy memo before Nelson agrees to represent you.

Biography

About Nelson Tonnar Castellano — Over 34 years of Florida business experience

Nelson Tonnar Castellano is a shareholder based in Tampa, FL. The practice focuses on Business, General, and Health Care. Nelson has over 34 years of legal experience. Currently practicing at Trenam Law. Rated 5.0 out of 5 from 1 client review.

Mr. Nelson Tonnar Castellano is a lawyer practicing e, business law, business transactions and 7 other areas of law. Nelson received a B.S. in Finance degree from Florida State University in 1988, and has been licensed for 34 years. Nelson practices at Trenam Law in Tampa, FL.

Working with Nelson on a business matter

Mr. Nelson Tonnar Castellano is a lawyer practicing e, business law, business transactions and 7 other areas of law. Nelson received a B.S. in Finance degree from Florida State University in 1988, and has been licensed for 34 years. Nelson practices at Trenam Law in Tampa, FL.

Who Nelson represents

Nelson reviews new inquiries case-by-case for business, general, and health care matters in Tampa and the surrounding Florida area.

Credentials

Nelson Tonnar Castellano's legal education and bar admissions

  • University of Florida, Fredric G. Levin College of Law

    Doctor · 1991

  • Florida State University

    B.S. · 1988

Jurisdictions

Nelson's state bar admissions

  • U.S. District Court,

    1994 · ACTIVE

  • U.S. Tax Court

    1993 · ACTIVE

  • Florida

    1992 · ACTIVE

Nelson studied at Doctor in University of Florida, Fredric G. Levin College of Law and B.S. in Florida State University.

Law school and academic background

Nelson completed Doctor in University of Florida, Fredric G. Levin College of Law and B.S. in Florida State University. Formal legal training is one signal of substantive knowledge — the day-to-day practice Nelson runs in Florida is where that training gets applied to real client questions.

Recognition

Awards, publications, and recognition of Nelson Tonnar Castellano

Nelson has received 1 formal recognition from bar associations, industry bodies, and peer-review services.

  • AV Preeminent

Legal awards and honors

AV Preeminent.

Locations

Nelson Tonnar Castellano's office in Tampa

Nelson's primary office is at 101 East Kennedy Blvd., Ste. 2700, Tampa, FL, 33602. In-person meetings are by appointment; a phone intake usually comes first.

Main office

Trenam Law

101 East Kennedy Blvd., Ste. 2700

Tampa, FL 33602

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Client feedback

Client reviews of Nelson Tonnar Castellano — 5.0/5 rating from 1 verified client review

Every review below is from a verified client of Nelson. Reviews cover communication, case outcome, and value — the three signals that matter most when comparing business attorneys in Tampa.

5.0

1 client review

Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Nelson Tonnar Castellano claims this profile.

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Hiring guide

How to hire Nelson Tonnar Castellano — what to expect in your first consultation

Working with a new business attorney should feel structured. Here's how the first two conversations with Nelson usually go, from the moment you request a consult to the day representation begins.

Consultation formats and pricing

Nelson charges for the initial consult. That fee is credited toward representation if you retain Nelson'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; Nelson will tell you what matters and what doesn't.

Questions to ask a business attorney in Tampa, Florida

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 Nelson

Nelson 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. Nelson confirms the model in the engagement letter before any work starts.

Payment methods and payment plans

Nelson'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 Nelson Tonnar Castellano

  • How much does it cost to hire Nelson for a business case?

    Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Nelson walks through the likely range during the consult so there are no surprises.

  • Does Nelson offer a free consultation?

    Nelson charges for the initial consult; that fee is credited toward representation if you retain Nelson's office. Some business attorneys offer free consults — check Nelson's current terms during booking.

  • How long do business cases in Florida 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. Nelson gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

  • Can Nelson take my case if I'm outside Tampa?

    Nelson is licensed in Florida. Matters governed by Florida law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Nelson will tell you if the case is a fit or refer you to someone closer to your court.

  • What should I bring to my first meeting with Nelson?

    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. Nelson will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

  • Is Nelson accepting new business clients right now?

    Nelson's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.

Areas served

Business attorneys serving Tampa, Miami and Orlando in Florida

Nelson handles business matters throughout Florida. Each city below is a direct link into the search page for verified business attorneys in that community.

More counsel

If Nelson's intake is full or the fit isn't right, these business attorneys in Tampa handle similar matters. Every profile below is verified and open to consultations.