A month and a half after senior management was forced to resign, Boston  Bancorp has replaced its outside auditor and legal counsel to "improve   operations" and respond to regulatory criticism.   
The $2 billion-asset corporation has hired Big Six accounting firm KPMG  Peat Marwick to take over from T.C. Edwards & Co. of Woburn, Mass. The   company retained the Boston law firm of Ropes & Gray to replace Washington   law firm Hogan & Hartson.     
  
Boston also named two new directors, including one from outside the  bank, to replace former chairman and chief executive Richard R. Laine and   president Paul A. Archibald.   
The two senior officials resigned under pressure Feb. 10 after the board  of directors received a stinging examination report from the Federal   Deposit Insurance Corp. Peter H. Hersey, an outside director, took over as   chairman as well as acting president and chief executive.     
  
The company is preparing to search for a new chief executive by  developing the criteria to evaluate candidates. 
Regulators blasted the management in their January report for  questionable conditions at the company, citing nepotism, unusually high   executive salaries, and the leasing of facilities to the bank by a real   estate partnership controlled by management.     
Examiners also found accounting problems at Boston Bancorp that prompted  a restatement of earnings for fiscal 1994. 
  
"It makes sense to me," said James Moynihan, senior vice president of  Advest Group in Boston. "That board now wants to be above criticism, and   certainly what they're doing puts them in that position."   
But spokesman Richard E. Nicolazzo declined to comment on whether the  changes were prompted by the regulators. 
The decision to switch accountants, he said, was made "because of the  growth of the bank." And bank officials chose Ropes & Gray because "they   simply felt that they would be better served by working with a local firm,"   he explained.     
Boston also hired Professional Banking Services Inc. of Louisville, Ky.,  to review management and revise internal policies, Capital Markets Risk   Advisors to develop a risk management plan, and William M. Mercer Inc. to   ensure that management salaries are in line with industry standards.     
  
The company has retained Tucker Anthony Inc. as financial adviser to  explore "all options to enhance shareholder value." 
Mr. Moynihan also speculated that if the company hires a new chief  executive who has run a full-service bank or thrift, "I think you'll very   quickly see them change their strategy and get into the lending business."