Mortgage lenders will likely see a modest downturn in production levels over the remainder of 2001, although the first half of the year has probably set the table for a new all-time record in loan originations. Fannie Mae this week predicted that $1.520 trillion of mortgages will be originated during 2001, enough to top the current record of $1.454 trillion set back in 1998. Some $849.7 billion in new production is expected to be booked