Lawyers and other professionals unraveling the tangled business dealings of Metropolitan Mortgage & Securities Co. have collected $19.4 million in fees and expenses during the past 21/2 years, according to company records and court filings. At least 28 law firms, outside accountants, tax consultants, public relations companies, insurance actuaries, turnaround specialists, expert witnesses, property appraisers and other companies were hired. It has been the largest and most expensive Eastern Washington bankruptcy. And the work isn't done.