- Commercial Litigation
- Criminal Tax Representation
- Cross-Border Mergers and Acquisitions
- Cryptocurrency Tax Matters
- Estate and Gift Tax for Foreign Investors
- Estate Tax Planning
- Expatriation
- FBAR Preparation and Penalty Defense
- FIRPTA
- Independent Contractor Disputes
- International Penalties
- International Tax Planning and Advice
- IRS Offshore Voluntary Disclosure Representation
- IRS Representation and Compliance
- Preparation of Form 3520
- Preparation of Form 5471
- Preparation of Form 5472
- Preparation of Form 8621 and PFIC Reporting
- State Tax Planning and Litigation
- Tax Audits, Controversies, and Litigation
- Tax Planning and Opinions
- Tax Planning of Cross-Border Cloud Computing Transactions
- Tax Preparation
- Tax-Exempt and Nonprofit Organizations
- Taxation of Foreign Pensions

Commercial Litigation

The attorneys at Diosdi & Liu, LLP have represented clients in the following areas of commercial litigation.
Tax Professional Malpractice
Business owners and individuals often rely on tax professionals to plan transactions or prepare their tax returns. Sometimes things go wrong and tax professionals provide incorrect tax advice or incorrectly prepare tax returns. This can result in significant additional income tax liability and penalties owed to the IRS and state taxing agencies. This is particularly the case in international tax cases. When a tax professional provides you with bad tax advice or incorrectly prepares your tax returns, you may have a claim against your tax professional for breach of contract, negligence, or misrepresentation. The attorneys at Diosdi & Liu, LLP have spent years advising clients in all areas of domestic and international taxation. We understand when a breach of contract occurs or when a tax professional commits negligence and misrepresentation. We have experience litigating breach of contract, negligence, and misrepresentation cases involving tax professionals.
Contract Disputes
We represented a content provider by filing a declaratory relief action regarding a non-compete clause against a medical journal. The medical journal argued that the non-compete clause contained in their business contract prevented the content provider from publishing articles in other medical journals. The attorneys at Diosdi & Liu, LLP convinced the court that the non-compete clause was invalid. This case was recognized by the California Labor and Employment Bulletin as a top 10 development in trade secrets and unfair competition in 2015. The attorneys at Diosdi & Liu, LLP are well-equipped to handle contract disputes involving non-compete agreement violations, as well as contract disputes involving cross-border payment disputes.
U.S. Securities and Exchange Commission Enforcement Proceedings
The attorneys at Diosdi & Liu, LLP have represented clients charged in the United States District Court with securities fraud and other violations of the federal securities laws by the SEC. If you are being investigated by the SEC or charged with an SEC violation, contact the attorneys at Diosdi & Liu, LLP.
- Commercial Litigation
- Criminal Tax Representation
- Cross-Border Mergers and Acquisitions
- Cryptocurrency Tax Matters
- Estate and Gift Tax for Foreign Investors
- Estate Tax Planning
- Expatriation
- FBAR Preparation and Penalty Defense
- FIRPTA
- Independent Contractor Disputes
- International Penalties
- International Tax Planning and Advice
- IRS Offshore Voluntary Disclosure Representation
- IRS Representation and Compliance
- Preparation of Form 3520
- Preparation of Form 5471
- Preparation of Form 5472
- Preparation of Form 8621 and PFIC Reporting
- State Tax Planning and Litigation
- Tax Audits, Controversies, and Litigation
- Tax Planning and Opinions
- Tax Planning of Cross-Border Cloud Computing Transactions
- Tax Preparation
- Tax-Exempt and Nonprofit Organizations
- Taxation of Foreign Pensions

Written By Anthony Diosdi
Anthony Diosdi focuses his practice on international inbound and outbound tax planning for high net worth individuals, multinational companies, and a number of Fortune 500 companies.
