Atty. William J Cosgriff

Atty. William J Cosgriff

William J Cosgriff is a lawyer practicing corporate, business law, real estate law and 2 other areas of law. William received a B.A. degree from University of St.

Minneapolis Minneapolis 60 yrs experience 60 year
Call (651) 461-8201 Book Appointment

Profile Summary

About William J Cosgriff at a glance

William J Cosgriff is an Of Counsel based in Minneapolis, Minnesota, practicing at Briggs and Morgan Professional Association. They have 60+ years of legal experience, licensed to practice since 1966. Their practice focuses on business, real estate, tax, and environmental. Admitted to practice in Minnesota (1966), U.S. Tax Court, U.S. Court of Appeals, Eighth and Federal Circuits, U.S. Military Court of Appeals a (1967), and U.S. District Court, District of Minnesota (1969). Educated at University of Minnesota (J.D., 1966) and University of St. Thomas (B.A., 1963). Recognitions include AV Preeminent. Active member of Ramsey County and Minnesota State (Member, Sections on: Corporation, Banking and Business Law Real Estate) Bar Associations. Serands clients in Minneapolis, MN and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William J Cosgriff is a lawyer practicing corporate, business law, real estate law and 2 other areas of law
  • William received a B.A. degree from University of St. Thomas in 1963, and has been licensed for 60 years
  • William practices at Briggs and Morgan Professional Association in Minneapolis, MN

Practice Areas Explained

William J Cosgriff's Areas of Practice

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

Business & Corporate Law

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

William J Cosgriff is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Minnesota →

Real Estate Law

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

William J Cosgriff is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in Minnesota →

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

William J Cosgriff is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Minnesota →

Environmental Law

Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.

William J Cosgriff is one of 56,434 environmental attorneys indexed nationally. Browse environmental attorneys in Minnesota →

Jurisdictional Context

Why local counsel matters in Minnesota

Practicing law in Minnesota. Legal matters in Minnesota are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Minneapolis are typically filed in the local municipal court or the appropriate Minnesota state district court, depending on subject matter and amount in controversy. An attorney licensed in Minnesota 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 Minnesota courts without local counsel or pro hac vice admission.

Looking for additional Minnesota attorneys? Browse all attorneys in Minneapolis or all attorneys in Minnesota.

Frequently Asked

Common questions about William J Cosgriff

Where is William J Cosgriff's law office located?
William J Cosgriff's law practice is located in Minneapolis, Minnesota. The firm is Briggs and Morgan Professional Association. You can contact the office directly through this profile page.
What practice areas does William J Cosgriff handle?
William J Cosgriff focuses on business, real estate, tax, environmental. Each practice area listed reflects experience handling cases of that type in Minnesota.
How long has William J Cosgriff practiced law?
William J Cosgriff has 60+ years of legal experience and has been licensed since 1966.
Where did William J Cosgriff go to law school?
William J Cosgriff earned their education at (J.D., 1966); (B.A., 1963).
How can I contact William J Cosgriff for a consultation?
You can contact William J Cosgriff 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 J Cosgriff received?
William J Cosgriff's notable recognition includes: AV Preeminent.

Education

J.D.
University of Minnesota
- 1966
B.A.
University of St. Thomas
- 1963

Awards

AV Preeminent

Bar Admissions

Minnesota
Admitted: 1966
U.S. Tax Court, U.S. Court of Appeals, Eighth and Federal Circuits, U.S. Military Court of Appeals a
Admitted: 1967
U.S. District Court, District of Minnesota
Admitted: 1969

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