Richard Silver and Jeffrey Rose will join GAM Multi-Manager in New York on March 31. Mr. Silver will be investment manager and head of the hedge fund-of-funds managers U.S. operations, and Mr. Rose will be investment manager. Both positions are new, part of the U.K.-domiciled firms U.S. institutional business expansion, said Joseph F. Gieger, managing director, GAM Multi-Manager-New York. Messrs. Silver and Rose came from Condor Capital, where Mr. Silver was managing partner and Mr. Rose was a partner. They co-managed Condors $200 million hedge fund of funds. Mr. Gieger said Condor Capital will be closed and GAM hopes to assume some of the firms former client accounts.