First big snow storm in Connecticut came and went, I have a duplex in Middletown with a common driveway with my neighbor and a back parking lot. Normally a pretty quick job since the common driveway gets plowed by neighbor. My dad travels 30 minutes to the property to tend the landscape and snow removal duties but there was so much snow my upstairs tenant helped my father out. I wanted to give $30 for the assistance and the tenant offered to do the snow removal duties and landscaping duties in the future. He is a young guy and I'm weighing the risk/reward of utilizing his help. I wonder if I set up a separate contract from the lease to utilize his help, but I wonder if I kept this separate, this would decrease any liability exposure? 

For starters, I would like to word the snow removal section as something like:

"ensuring walkways, front stairs, sidewalks, driveway, etc. be free of snow and ice after 24 hours of any weather-related event, including putting down de-icing salts on ice or icicle removal as needed'.  $30 per snow/ice removal incident for anything substantial (ice events or snowfall over ~2", lasting over 24 hours) and id reimburse for de-icers or equipment as needed."

Thoughts on the language? Not sure on landscaping yet. As an alternative, do you go with a $50-$60 per incident snow removal/landscaping professional person (with insurance) however it is a pretty small area to remove snow. Your help would be useful! Thanks.