Atty. David Mark Birnbaum
David Mark Birnbaum is a lawyer practicing securities law, corporate law, real estate law and 1 other area of law. David received a A.B. degree from University of Chicago in 1979, and has been licensed for 42 years.
Corporate Law & More Attorney · Serving Portland, OR · 42+ Years Experience
Profile Summary
About David Mark Birnbaum at a Glance
David Mark Birnbaum is a business, real estate, and securities attorney based in Portland, Oregon. They have 42+ years of legal experience, licensed to practice since 1984. Admitted to practice in New York (1984), U.S. District Court, Southern District of New York (1984), and U.S. District Court, Eastern District of New York (1984). Educated at Hofstra University (J.D., 1983) and University of Chicago (A.B., 1979). Serves clients in Portland, OR and the surrounding metropolitan area.
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About David Mark Birnbaum
- David Mark Birnbaum is a lawyer practicing securities law, corporate law, real estate law and 1 other area of law
- David received a A.B. degree from University of Chicago in 1979, and has been licensed for 42 years
- David practices in Portland, OR
Practice Areas Explained
David Mark Birnbaum's Areas of Legal Practice
Each practice area below reflects the types of cases David Mark Birnbaum 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.
David Mark Birnbaum is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Oregon →
Real Estate Law in Portland
Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.
David Mark Birnbaum is one of 313,729 real estate attorneys indexed nationally. Browse real estate attorneys in Oregon →
Securities Law in Portland
David Mark Birnbaum is one of 64,075 securities attorneys indexed nationally. Browse securities 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 David Mark Birnbaum
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 David Mark Birnbaum's practice in the field of business, real estate, and securities.
Decade-Tested Legal Experience
David Mark Birnbaum brings 42+ 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 New York, U.S. District Court, Southern District of New York, and U.S. District Court, Eastern District of New York, David Mark Birnbaum can represent clients in cases that span state lines or require counsel in multiple jurisdictions.
Broad Practice Area Coverage
Covering business, real estate, and securities, David Mark Birnbaum 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 David Mark Birnbaum 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 David Mark Birnbaum Handles in Portland
Below is a representative sample of the types of matters David Mark Birnbaum 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 David Mark Birnbaum directly to discuss the specifics of your situation.
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How People Find David Mark Birnbaum Online
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David Mark Birnbaum's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
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