Four of Mayer Brown Rowe & Maw's 39 new partners are from the tax practice. Olivier Parawan, a private equity/LBO and cross-border acquisitions specialist, becomes a partner in Paris; Heiko Penndorf, from Frankfurt, does banking products work, particularly securitisation, structured finance and real estate finance; Jeffrey Bruns, a tax transactions partner in Chicago, works on the formation and operation of partnerships and limited liability companies, particularly on transactions involving real estate assets and Nathaniel Carden is a tax controversy and transfer pricing specialist