By Marcie Geffner - Bankrate.com
Suppose your mortgage has a low interest rate--lower than you expect to see ever again. Would you stay put, no matter what, just to keep that low rate? Or would you be willing to sell your home and buy another with a new mortgage at a higher rate?
The question might seem highly personal. But in fact, what's known as mortgage lock-in is on a lot of people's minds because it could have important implications for home sellers and buyers, as well as owners.