1. Yes, the new rules apply to returns required to be made, and statements required
to be furnished, after December 31, 2016.
2. You are required to send/file 1098s when you receive $600 or more of
mortgage interest, from an individual, on any one mortgage during the calendar year. A mortgage is any obligation secured by real property. And real property is land and generally anything built on it, growing on it, or attached to the land.
I’d encourage you to consult an attorney or CPA for specific information on your FI’s requirements.