has represented companies in various industries in complex tax investigations concerning cross-border payments, application of international tax treaties, corporate reorganisations, and transfer pricing, among other things. Guillermo has been successful in reaching positive outcome for multimillion-dollar tax investigations through administrative processes that prevented the controversies being brought to formal court litigation. He maintains an active presence with PRODECON, the Federal Administrative Court (Tax Court) and the Courts of Justice. In addition to tax litigation, Guillermo is skilled in tax planning, taxation of corporate restructurings, M&A, and general tax advice, especially for business and multinational groups with operations in Mexico.
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