Atty. Jonathan A Ater
Mr. Jonathan A Ater is a lawyer practicing lawsuits & disputes, alternative dispute resolution, business and 3 other areas of law.
Alternative Dispute Resolution & More Attorney · Serving Portland, OR · 60+ Years Experience
Profile Summary
About Jonathan A Ater at a Glance
Jonathan A Ater is a Partner based in Portland, Oregon, practicing at Ater Wynne LLP. They have 60+ years of legal experience, licensed to practice since 1966. Their practice focuses on business, zoning, litigation, environmental, and health care. Admitted to practice in Oregon (1966) and U.S. District Court, District of Oregon (1966). Educated at Yale Law School (LL.B., 1965) and Yale University (B.A., 1962). Recognitions include AV Preeminent. Active member of Multnomah County and American Bar Associations Oregon State Bar. Serves clients in Portland, OR and the surrounding metropolitan area.
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About Jonathan A Ater
- Mr. Jonathan A Ater is a lawyer practicing lawsuits & disputes, alternative dispute resolution, business and 3 other areas of law
- Jonathan received a B.A. degree from Yale University in 1962, and has been licensed for 60 years
- Jonathan practices at Ater Wynne LLP in Portland, OR
Practice Areas Explained
Jonathan A Ater's Areas of Legal Practice
Each practice area below reflects the types of cases Jonathan A Ater 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.
Jonathan A Ater is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Oregon →
Land Use & Zoning in Portland
Jonathan A Ater is one of 39,875 zoning attorneys indexed nationally. Browse zoning attorneys in Oregon →
Civil Litigation in Portland
Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.
Jonathan A Ater is one of 450,750 litigation attorneys indexed nationally. Browse litigation attorneys in Oregon →
Environmental Law in Portland
Environmental attorneys for regulatory compliance, contamination, land use, and natural resource law.
Jonathan A Ater is one of 55,977 environmental attorneys indexed nationally. Browse environmental attorneys in Oregon →
Health Care Law in Portland
Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.
Jonathan A Ater is one of 66,157 health care attorneys indexed nationally. Browse health care 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.
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Professional Profile
Why Clients in Portland Choose Jonathan A Ater
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 Jonathan A Ater's practice in the field of business, zoning, litigation, environmental, and health care.
Decade-Tested Legal Experience
Jonathan A Ater brings 60+ 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 Oregon and U.S. District Court, District of Oregon, Jonathan A Ater can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, zoning, and litigation, Jonathan A Ater 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 Jonathan A Ater 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 Jonathan A Ater Handles in Portland
Below is a representative sample of the types of matters Jonathan A Ater 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 Jonathan A Ater directly to discuss the specifics of your situation.
Search Reference
How People Find Jonathan A Ater Online
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Jonathan A Ater's Practice Areas & Specializations
Education & Law School Background
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