Atty. Johnathan E Mansfield
Mr. Johnathan E Mansfield is a lawyer practicing commercial litigation, industry initiatives and trade organizations, intellectual property and 1 other area of law.
Commercial Litigation & More Attorney · Serving Portland, OR · 32+ Years Experience
Profile Summary
About Johnathan E Mansfield at a Glance
Johnathan E Mansfield is a Member based in Portland, Oregon, practicing at Mansfield Law. They have 32+ years of legal experience, licensed to practice since 1994. Their practice focuses on business, ip, and litigation. Admitted to practice in District of Columbia (1994), Washington (1998), California (2001), and Oregon U.S. Supreme Court U.S. Court of Appeals, Ninth and Federal Circuits U.S. District Court, Dis (2005). Educated at Cornell University (J.D., 1993) and Portland State University (M.S. Political, 1990). Recognitions include AV Preeminent. Serves clients in Portland, OR and the surrounding metropolitan area.
Get Legal Help from Johnathan E Mansfield in Portland
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About Johnathan E Mansfield
- Mr. Johnathan E Mansfield is a lawyer practicing commercial litigation, industry initiatives and trade organizations, intellectual property and 1 other area of law
- Johnathan E received a M.S. degree from Portland State University in 1990, and has been licensed for 32 years
- Johnathan E practices at Mansfield Law in Portland, OR
Practice Areas Explained
Johnathan E Mansfield's Areas of Legal Practice
Each practice area below reflects the types of cases Johnathan E Mansfield handles, with a practical overview of what that area of law involves and how it may apply to your situation in Portland.
Business & Corporate Law in Portland
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Johnathan E Mansfield is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Oregon →
Intellectual Property in Portland
IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.
Johnathan E Mansfield is one of 105,285 ip attorneys indexed nationally. Browse ip attorneys in Oregon →
Civil Litigation in Portland
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Johnathan E Mansfield is one of 450,751 litigation attorneys indexed nationally. Browse litigation attorneys in Oregon →
Jurisdictional Context
Why Local Counsel Matters in Portland
Practicing law in Oregon. Legal matters in Oregon are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Portland are typically filed in the local municipal court or the appropriate Oregon state district court, depending on subject matter and amount in controversy. An attorney licensed in Oregon brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Oregon courts without local counsel or pro hac vice admission.
Portland Courts and Legal Process
Choosing a Portland-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
Looking for additional Oregon attorneys? Browse all attorneys in Portland or all attorneys in Oregon.
Frequently Asked
Common Questions About Johnathan E Mansfield
Where is Johnathan E Mansfield's law office located?
What practice areas does Johnathan E Mansfield handle?
How long has Johnathan E Mansfield practiced law?
Where did Johnathan E Mansfield go to law school?
How can I contact Johnathan E Mansfield for a consultation?
What awards or recognition has Johnathan E Mansfield received?
Professional Profile
Why Clients in Portland Choose Johnathan E Mansfield
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Johnathan E Mansfield's practice in the field of business, ip, and litigation.
Decade-Tested Legal Experience
Johnathan E Mansfield brings 32+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Multi-State Bar Admission
Licensed in District of Columbia, Washington, and California, Johnathan E Mansfield can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, ip, and litigation, Johnathan E Mansfield can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in Portland
A Portland-based practice means Johnathan E Mansfield attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Johnathan E Mansfield Handles in Portland
Below is a representative sample of the types of matters Johnathan E Mansfield has experience with under Oregon law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Johnathan E Mansfield directly to discuss the specifics of your situation.
Search Reference
How People Find Johnathan E Mansfield Online
Prospective clients searching for legal help in Portland commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Johnathan E Mansfield.
If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Johnathan E Mansfield directly.
Johnathan E Mansfield's Practice Areas & Specializations
Education & Law School Background
Awards & Professional Honors
Bar Admissions & Licensed Jurisdictions
Client Reviews & Ratings — Johnathan E Mansfield
No reviews yet.