J. Daniel Mattei

Jesús Daniel Mattei, CFA


Expert Witness and Litigation Support

Jesús Daniel Mattei provides expert witness services in trials, arbitrations and mediations, for matters involving financial services, complex financial transactions and asset valuation.



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Over $25 billion in transactional experience including advising the Government of Puerto Rico on the largest ever municipal debt restructuring in US history. Participated actively in pivotal matters of the Puerto Rico restructuring, including litigation and mediation strategy, negotiations with creditors, and communications with national credit rating agencies.


Mr. Mattei has been portfolio manager for over 15 mutual funds and separate managed accounts with an aggregate of more than $3.5  billion in assets under management. He also oversaw a $150 million open-ended investment fund structure based in Luxembourg. Experience with fund leverage program with over $4 billion in aggregate repo and commercial paper lines.

Before founding Rockelis Partners, Daniel was Director of Financing and Debt Restructuring for the Fiscal Agency and Financial Advisory Authority of Puerto Rico (AAFAF).  Prior to AAFAF, he was Portfolio Manager at Santander Asset Management, where he joined as Senior Portfolio Analyst. Previously, he served as Financial Analyst for UBS Asset Management and Banco Popular.

He served as board member for entities that include: Puerto Rico Public Building Authority, Puerto Rico Government Employee Retirement, Puerto Rico Teachers Retirement System, and Puerto Rico Judiciary Retirement System.

Mr. Mattei received a Masters of Business Administration from the University of New Orleans and a  Bachelors Degree on Business Administration  in finance from the University of Puerto Rico. He is a CFA Charterholder, has been approved as  FINRA Dispute Resolution Arbitrator, and previously held FINRA Series 7 and Series 66 licenses.

Selected areas of expertise

  • Municipal Bankrupcy

  • Debt Restructuring

  • Valuation

  • Fiduciary Best Practices

  • Standards of Care

  • Investment Management

  • Due Diligence

  • Suitability of Investments

  • Professional Conduct

  • Duties of Supervisors

  • Conflicts of Interest

  • Asset Allocation

  • Market Manipulation

  • Investment Selection

  • Manager Selection

  • Securities Fraud

  • Insider Trading

  • Investment Banking

  • Securities Offerings

  • Regulatory Compliance

  • Policies and Procedures

  • Corporate Governance

  • Cherry-Picking

  • Churning

  • Broker/Dealer

  • Fiduciary Duty

Selected Asset classes

  • Municipal Bonds

  • Agency Morgage Backed Securities

  • Repo Financing

  • US Treasury Futures

  • US Agency Bonds

  • Corporate Bonds

  • Commercial Paper

  • Interest Rate Swaps

  • Supranational Debt

  • Sovereign Debt

  • Structured Notes

  • Global Equities

  • Private Placements

  • Exchange Traded Funds



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