The answer to your question may vary depending on the lender. Some of the lenders I work with will apply a pricing adjustment for multiple units while others will not. This is why choosing the right mortgage professional is of utmost importance. I, for example, work with many lenders and therefore have more lucrative options than most.
Interest rates will also depend on the type of mortgage you are seeking. Conventional mortgage and FHA loans are priced completely differently. Also, depending on the number of units, we'd need to determine whether or not your mortgage will be within, or above, your county loan limits.
Every scenario is different and should be handled uniquely to meet your goals. If you'd like to weigh out some options to determine which route is truly in your best interest please contact be directly via phone or email; whichever is of greatest convenience.
Paul F. Marzolla
Sr. Mortgage Consultant