Wording for my lease to protect me if I'm paying water and heat?

[Angelo Davis]

I just brought my first duplex in Baltimore City, 21213 area that I'll be house hacking.  I wanted to know what the best wording for my lease to protect me if I'm paying the utilities? I'll be paying for water and gas radiator heat. I only want to cover up to a certain amount for water and heat and have the tenants pay any overages. Also, if anyone from the Baltimore area has an updated lease I could use I'd greatly appreciate it.  Thank you in advance!