I need a clause for my rental agreement

[Hanan K.]

Hi, I've found a tenant for a unit I'm renting out. It's a 3 family house -- three floors. This is the first floor unit. I want to make sure they know use of porch is not permitted -- the porch is also  the main entrance to the home. 

 The reason is because I want to make sure the entrance to the house is a safe and comfortable area for all living in the building. For Ex--if you're entering your home -- and you've got a family or say the 20 year old  son and his friends hanging out and drinking beers on the porch ---this will be uncomfortable for the single mother on the 2nd floor and for the 2 professional women on the third. 

Would very much appreciate any ideas as to a clause I can add to the lease.

Thanks so much