We rent a single family residence. The LL agreed to several repairs (including trip hazards) and small improvements prior to move-in. The work should only have taken a few days. We are now 30 days into our tenancy and the work is still not done. LL has been on our property for 20 of these days, for up to 12 hours and several times past dark. He comes for a small item but stays puttering in our yard for hours. We have children, we work from home and this has become a major nuisance. He calls my husband and I by phone, sometimes 2-3 times per day at all of our numbers, and just drops by, letting himself in if he can't reach us. Neighbors say he always finds excuses to be on the property, and we are concerned that this is a chronic behavior. Can we end our lease if he won't stop?