Atty. William S Jonassen

Atty. William S Jonassen

Mr. William S Jonassen is a lawyer practicing general civil practice, trials and appeals in state and federal courts, personal injury law and 11 other areas of law.

Clearwater Clearwater 52 yrs experience 52 year
Call (727) 756-8548 Book Appointment

Profile Summary

About William S Jonassen at a glance

William S Jonassen is a Member based in Clearwater, Florida, practicing at William S. Jonassen, P.A.. They have 52+ years of legal experience, licensed to practice since 1974. Their practice focuses on probate, medical malpractice, personal injury, business, and real estate. Admitted to practice in Florida (1974), U.S. District Court, Middle District of Florida and U.S. Court of Appeals, Fifth Circuit (1974), U.S. Tax Court (1975), and U.S. Supreme Court (1978). Educated at University of Florida (J.D., 1973) and University of Delaware (B.A., 1966). Recognitions include AV Preeminent. Active member of Clearwater and American Bar Associations The Florida Bar The Association of Trial Lawyers of America. Serands clients in Clearwater, FL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. William S Jonassen is a lawyer practicing general civil practice, trials and appeals in state and federal courts, personal injury law and 11 other areas of law
  • William received a B.A. degree from University of Delaware in 1966, and has been licensed for 52 years
  • William practices at William S. Jonassen, P.A. in Clearwater, FL

Practice Areas Explained

William S Jonassen's Areas of Practice

Each practice area below reflects the types of cases William S Jonassen handles, with a brief overview of what that area of law covers.

Probate

William S Jonassen is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Florida →

Medical Malpractice

Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.

William S Jonassen is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Florida →

Personal Injury

Personal injury attorneys help accident victims recover compensation for medical bills, lost wages, and pain & suffering. Most work on contingency — no fee unless you win.

William S Jonassen is one of 264,852 personal injury attorneys indexed nationally. Browse personal injury attorneys in Florida →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William S Jonassen is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Florida →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

William S Jonassen is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Florida →

Jurisdictional Context

Why local counsel matters in Florida

Practicing law in Florida. Legal matters in Florida are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Clearwater are typically filed in the local municipal court or the appropriate Florida state district court, depending on subject matter and amount in controversy. An attorney licensed in Florida brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Florida courts without local counsel or pro hac vice admission.

Looking for additional Florida attorneys? Browse all attorneys in Clearwater or all attorneys in Florida.

Frequently Asked

Common questions about William S Jonassen

Where is William S Jonassen's law office located?
William S Jonassen's law practice is located in Clearwater, Florida. The firm is William S. Jonassen, P.A.. You can contact the office directly through this profile page.
What practice areas does William S Jonassen handle?
William S Jonassen focuses on probate, medical malpractice, personal injury, business, real estate. Each practice area listed reflects experience handling cases of that type in Florida.
How long has William S Jonassen practiced law?
William S Jonassen has 52+ years of legal experience and has been licensed since 1974.
Where did William S Jonassen go to law school?
William S Jonassen earned their education at (J.D., 1973); (B.A., 1966).
How can I contact William S Jonassen for a consultation?
You can contact William S Jonassen directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.
What awards or recognition has William S Jonassen received?
William S Jonassen's notable recognition includes: AV Preeminent.

Education

J.D.
University of Florida
- 1973
B.A.
University of Delaware
- 1966

Awards

AV Preeminent

Bar Admissions

Florida
Admitted: 1974
U.S. District Court, Middle District of Florida and U.S. Court of Appeals, Fifth Circuit
Admitted: 1974
U.S. Tax Court
Admitted: 1975
U.S. Supreme Court
Admitted: 1978

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