Oscar I Alfonso & Associates - Miami, FL office in Miami, Florida
Oscar I Alfonso & Associates - Miami, FL

Oscar I Alfonso & Associates - Miami, FL

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1000 Brickell Ave #410, Suite 410, Miami, Florida, United States
14 Years of Practicing, since 2012
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+1 305-376-0700
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Oscar I. Alfonso and Associates is a boutique international tax and estate planning law firm in Brickell, Miami. Led by attorney and CPA-trained practitioner Oscar I. Alfonso, the firm provides cross-border tax structuring, trust administration, probate counsel, and IRS compliance for high-net-worth families and multinational entrepreneurs.

Strategic International Tax and Estate Planning in Miami

Managing cross-border assets and family wealth requires technical command over complex tax codes and international reporting rules. Located at 1000 Brickell Avenue, Oscar I. Alfonso and Associates provides dedicated counsel to high-net-worth individuals, global families, and multinational enterprises. Founded by Oscar I. Alfonso, an attorney holding an LL.M. in Taxation and an accounting background, the firm brings precision to every matter. When you need a lawyer who can harmonize United States tax laws with foreign jurisdictions, this boutique practice delivers strategic guidance.

Serving clients across Latin America, the Caribbean, Europe, and the United States, the firm handles inbound and outbound tax planning, asset protection trusts, and IRS controversy matters with strict confidentiality and meticulous care.

Inbound and Outbound International Tax Structuring

Foreign investors purchasing United States real estate or launching American operations face substantial tax exposure. Operating as trusted tax lawyers, the firm designs compliant structures that minimize worldwide liabilities while ensuring full regulatory compliance.

  • Pre-Immigration Planning: Advising foreign nationals before establishing United States tax residency to optimize asset bases.
  • Expatriation Counseling: Assisting citizens and green card holders relinquishing residency through expatriation rules.
  • FIRPTA Compliance: Structuring foreign investment in Florida real estate to address statutory withholding requirements.
  • Cross-Border Structures: Establishing inbound and outbound corporate entities and joint ventures.

IRS Compliance and Voluntary Disclosure Defense

Undisclosed offshore bank accounts and foreign holdings can trigger severe civil penalties. As experienced irs dispute lawyers, the practice guides taxpayers through the IRS Streamlined Filing Compliance Procedures and voluntary disclosures. The firm also assists clients in adhering to FATCA and CRS standards, protecting them from unexpected audits and penalties.

Comprehensive Estate Planning, Trusts, and Wills

Generational wealth transfer involves safeguarding assets from unnecessary estate taxes and administrative delays. Working as dedicated estate planning lawyers, wills lawyers, and trusts lawyers, the firm drafts customized planning instruments for multi-jurisdictional families.

  • Trust Creation: Structuring revocable, irrevocable, and foreign grantor trusts for multi-generational wealth preservation.
  • Wills and Directives: Drafting pour-over wills, living wills, and durable financial powers of attorney.
  • Probate Administration: Guiding executors through formal, summary, and ancillary probate proceedings in Florida.
  • Asset Protection: Implementing structures to shield family assets from unexpected claims.

Why Clients Choose Oscar I. Alfonso and Associates

  • Dual Legal and Accounting Insight: Combining tax law knowledge with CPA-level financial background.
  • Multilingual Practice: Fluent representation in English and Spanish for seamless cross-border communication.
  • Boutique Attention: Direct partner access, prompt responsiveness, and personalized solutions.
  • Prime Brickell Location: Centrally based in Miami's financial core for international accessibility.

Whether establishing a multinational venture, acquiring Florida property, or preserving a family legacy, early counsel is critical. Contact Oscar I. Alfonso and Associates today to schedule a legal consultation with an experienced tax attorney.


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Location & Access

Primary Address

Situated in the heart of the prestigious Brickell financial district of Miami, often referred to as the 'Wall Street of the South'.

Building Location

This is a 12-story commercial boutique office condo building located at 1000 Brickell Ave. The structure is within walking distance of premier spots, situated near Sushi Siam and Nusr-Et.

Parking Details

The building offers deeded garage parking spaces, an on-site surface parking lot for clients and guests, and complimentary valet parking services at the front entrance.

Public Transit

Served by Miami-Dade Transit Route 24, 95, 109, 110 (Downtown/Brickell); nearest stop is at Brickell Avenue @ Southeast 8th Street.

Accessibility / Suite Access

Enter through the main lobby of the building at 1000 Brickell Avenue and take the elevator to the 4th floor. The firm's offices are located in Suite 410.

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