Absolute minimum duties for Staff Development

Hi everyone! I have worked in Staff Development for about 7 years now. I work in the LTC field and am growing increasingly tired of LTC in general. I love working with the elderly and most of the people at my facility, but I am fed up with the regulatory aspects and scrutiny that we face everyday. I am thinking about excepting a position as a school nurse at an elementary school near my home. I don't want to leave my LTC facility high and dry, so I'm considering staying for 20 hours a week to do the 'staff development " part of my job. As many of you in staff development know and have experienced, my job includes a lot of HR type functions that a RN isn't required to do. My question is... What is the absolute minimum roles and responsibilites for my job just as a staff development nurse? Sad to say, I've taken on so many different responsibilites, I've forgotten what my "required RN" tasks are. Any and all help will be greatly appreciated! Oh yes we are 100 bed facility and staff approx. 170 people.