Moving out of owner occupied duplex. What actions must be taken?

[Patrick Tully]

     I own a multi family home in Long Branch NJ. My family and I have resided in the upstairs unit for the last four years while renting out the bottom apartment. The property value has nearly double and the rental market is on fire over here. It has worked out far beyond anything I could have imagined. We are now moving on to bigger and better things and its time to rent out the unit we have been living in. I will now be operating a two unit non owner occupied property.
   I remember when we first bought the place and I was researching everything I need to know about land lording in my area, I would read some requirement and then disregard it because it stated " owner occupied dwellings below x number of units" were not bound by whatever this requirement was. Now that I will no longer be owner occupied I am not sure if I know everything I need to do differently.
   I know my taxes and deductions will be different. I know I must now register as a landlord with my city. I believe I need to make my property insurance company and my lending bank aware of the change? Any ideas about what I am missing? Any NJ or Monmouth county specific that I need to be aware of (if anybody from her reading)?
  Any help would be appreciated. Thanks!
Pat