If you have the will power to invest the savings from the monthly payments, it still could be a good choice to go with the 30 year mortgage. Especially if you can find an investment that the long term payoff matches or exceeds what you ... In most cases, banks usually close mortgage loans more quickly than a mortgage broker does. This is probably because a mortgage broker deals with two types of persons - the lender and the client. Resolving mortgage issues between these two is a time-consuming job.