A lender is introducing a “portable” mortgage...

A lender is introducing a “portable” mortgage aimed at home buyers who want to guard against having to pay higher interest if they move. Chase Home Mortgage Corp., which has four branch offices in California among 44 nationwide, expects to begin the new fixed-rate home loan program next month. The portable mortgage will allow customers to transfer their mortgage to a new home without having to pay either a higher interest rate or more in points.