Robert P. Davis, former chief of staff to Secretary of Transportation Elizabeth Hanford Dole, has joined Anderson, Hibey, Nauheim & Blair, a partnership of professional corporations. Madeline J. Bradstock and Gordon A. Coffee also have joined the firm.

Scott Cohen, who recently retired as staff director of the Senate Foreign Relations Committee, has opened a consulting firm in Washington. Scott Cohen & Associates will offer a full range of consulting services to industry, governments and national and international organizations with an emphasis on how to deal with the U.S. government. Cohen was a foreign affairs adviser to former Sen. Charles H. Percy (R-Ill.) and worked earlier as a foreign news correspondent.

Kaplan, Smith & Associates Inc. has named James R. Causey senior vice president in its Washington office. Also promoted in the firm's office here were Francesca J. Jacoby and Ava Z. Onisick, both named assistant vice presidents. Kaplan, Smith, which also has offices in Los Angeles and Atlanta, is a diversified consulting firm that provides financial, management and economic consulting services to the financial industry.

Eric Hjertberg, formerly of Booz, Allen & Hamilton, Inc., has joined the Cooper-Lecky Partnership as project manager and marketing director Cooper-Lecky specializes in architecture, planning and interior design.

Barry Ebersole and David McGrew have joined McCrone Inc. as project engineers in the firm's Annapolis office. McCrone is an engineering, land planning and surveying company.