Correction, 2/20/2013, 10:40 a.m. EST: The original version of this article referred incorrectly to the year that Sheppard, Mullin, Richter & Hampton acquired Santa Barbara–based Nida & Maloney. That acquisition occurred in 2001. The second paragraph of the story has been revised to reflect the correct information. We regret the error.

Cooley has continued the expansion of its recently opened Los Angeles office with the addition of two former Sheppard, Mullin, Richter & Hampton partners, C. THOMAS HOPKINS and IAN SMITH. Both join the firm’s business department as partners.

Hopkins, who previously cochaired Sheppard Mullin’s global corporate practice group, specializes in public offerings and mergers and acquisitions, while Smith concentrates on mergers and acquisitions and venture capital matters. Earlier this year, the pair advised Fidelity National in its purchase of Atlanta-based health insurance distributor Digital Insurance for an undisclosed sum. Both joined Sheppard Mullin in 2001, when the firm acquired Santa Barbara–based Nida & Maloney, according to Pacific Business, which names other past clients of the duo including Fastclick, CKE Restaurants, and Boeing.

As sibling publication The Recorder reported at the time, Cooley launched its Los Angeles branch in July 2012 with four founding partners from four firms, including former Gibson, Dunn & Crutcher partner David Hernand. Since then, the firm has hired 11 attorneys and has said it expects to continue to grow this year.

A spokesman for Sheppard Mullin—which has 500 lawyers in California, including more than 100 in the corporate and securities department—said the firm does not comment on departing partners.

In other Churn news…

JAMES WALTHER has lateraled from Mayer Brown to Arnold & Porter, where he joins the corporate and securities and financial services practices as a senior counsel. Based in Los Angeles, Walther had served over the years as coleader of Mayer Brown’s global corporate and securities practice and later as the corporate and securities practice leader for the firm’s California offices.

JOSEPH DELGADO JR. and MICHAEL HABER have been hired as shareholder and senior counsel, respectively, in Baker, Donelson, Bearman, Caldwell & Berkowitz’s business team in Atlanta. Delgado joins Baker Donelson from Miller & Martin, where he was a partner, to work on matters related to corporate and partnership law. Haber was most recently a partner with Smith, Gambrell & Russell, and will be focusing his practice on commercial transactions and bankruptcy law.

DOUGLAS BUCHANAN
has joined Debevoise & Plimpton’s New York office as of counsel and cohead of the firm’s global infrastructure and project finance group. Most recently, Buchanan was a senior partner with Canadian-based firm Davis.

After nearly 20 years with the U.S. Department of Justice’s antitrust division, most recently as chief of the Middle Atlantic office, ROBERT CONNOLLY has joined DLA Piper as of counsel. Connolly will use his experience in national and international white-collar criminal investigations as a member of DLA Piper’s litigation practice in Philadelphia.

TROY TERAKEDIS has lateraled to Jones Day as a partner in the firm’s tax practice. Terakedis will be based in the Columbus office, where he will concentrate on federal income tax matters related to partnerships, limited liability companies, and corporations. Most recently, the attorney was a partner with Cleveland-based law firm Calfee, Halter & Griswold.

Morrison Cohen has hired YARIV BEN-ARI, previously an associate with Herrick Feinstein. Joining the firm’s real estate department as a senior counsel based in New York, Ben-Ari will focus on commercial real estate and finance matters.

ROB MCKENNA
has returned to private practice after serving two terms as attorney general of the State of Washington. McKenna joins Orrick, Herrington & Sutcliffe as a partner and cochair of the public policy group, based in Seattle.

Paul, Weiss, Rifkind, Wharton & Garrison has announced the arrival of new partner ALEXANDRA WALSH in the firm’s litigation department. Walsh, whose practice focuses on civil and white-collar criminal litigation, will be based in Washington, D.C. She was last a partner at Baker Botts.

Polsinelli Shughart has added a new shareholder to its New York team with the hire of EDWARD FOX, previously a partner at K&L Gates. Fox will be assisting clients with bankruptcy and financial services needs.

BRUCE ROSENBLUM
is the latest addition to Vedder Price’s investment services practice. The new shareholder joins from K&L Gates, where he was a partner, to work from the firm’s Washington, D.C., office.

PATRICK COFFEY has left the partnership at Locke Lord to lead Whyte Hirschboeck Dudek’s newly formed corporate compliance and white-collar defense team. Coffey will be working from Chicago and Milwaukee.

The Churn is compiled from law firm releases and announcements. Moves based on our own reporting will note this. Please send all announcements and news releases to thechurn@alm.com.