Despite experiencing a whopping 760 percent jump in activity last year, the Federal Home Loan Bank System’s popular Mortgage Partnership Finance program is facing a very uncertain future in 2001. On the competitive side, a lack of new FHA and VA mortgage business has dramatically reduced the volume of loans going into MPF this year. Meanwhile, the development of other MPF-like programs within the FHLBank System is likely to siphon off some MPF customers in