Business Litigation.
The disputes that arise inside operating companies — between members, shareholders, partners, founders, directors, and the people who counsel them — and the disputes those companies fight with the outside world.
Business litigation is the firm's largest practice line. Most matters originate from inside the company — a 50/50 deadlock, a fiduciary breach, an oral partnership claim, a member who walked away with the customer list — and resolve in either Florida circuit court, federal district court, or commercial arbitration.
The firm handles both plaintiff and defense work. Many matters begin as one and end as the other, with claims and counterclaims developing through discovery. The two postures require different temperaments — patience and discipline on offense, decisive judgment on defense — and the firm has built its practice on both.
The firm's posture is straightforward. Cases are evaluated for trial from the first conversation. Most matters do not go to trial — most matters resolve, as they should, when the costs and risks become clear to both sides. But the firm prepares every matter as if it will be tried.
Engagements are taken selectively. When the firm accepts a matter, it stays with the matter through trial. There is no rotation, no handoff, no associate making strategic calls without partner involvement.
Shareholder, partnership & intra-family business disputes.
Control disagreements, breakups, fiduciary claims, and the disputes that arise when ownership groups stop trusting one another — handled with the privacy these matters require.
Contract & commercial litigation.
Breach, performance, indemnity, earn-out, and tortious-interference matters across operating companies, joint ventures, and strategic vendor relationships.
Fraud, misrepresentation & failed investment matters.
Disputes arising from failed deals, misrepresented investments, and the schemes that come to light only after capital is in motion.
Real estate & development disputes.
Joint-venture disagreements, performance failures, lender-borrower conflicts, and condominium matters involving developers, investors, and owners.
Securities & negligent misrepresentation.
Disputes between investors and the advisors, sponsors, or counterparties who placed them into positions that should not have been recommended.
Deceptive & unfair trade practices.
FDUTPA and related claims, including the strategic use of unfair-competition theory in disputes that began as something else entirely.
Every business litigation engagement is handled directly by David B. Rosemberg, the firm's founder and trial counsel. When a matter requires additional capacity — the firm brings in trusted co-counsel and other support under direct partner supervision.
David has been a commercial trial lawyer for more than two decades. He founded Rosemberg Law in 2017 after nine years at one of Florida's largest firms, where he was elected its youngest litigation partner in 2012.
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