TRAVELERS <TIC> UNIT TO BUY REALTY DIVISIONS The Travelers Corp's Travelers Mortgage Services said it signed a letter of intent to buy two subsidiaries of the privately-held <Equitable Life Assurance Society of the U.S.> The company said it plans to acquire the Equitable Relocation Management Corp and the Equitable Realty Network Inc. The company said the acquisitions will give it broader distribution of its corporate relocation service and mortgage programs.