If it is cost prohibitive to have a utility do it, submeters are cheap and easy.Each unit should also have it's own individual water shut off, this is an ideal place to install a meter.

I don't know of any law in my state or at the federal level that would prohibit that.

. :)Edit to add: most leases state that illegal behavior is prohibited on the premises. 

I want to make sure you thoroughly understand this piece since you are going it alone.The Fair Housing Act prohibits discrimination against prospective tenants and current tenants on the basis of the following characteristics or "protected classes": race, color, religion, sex, national origin, disability, and familial status.

Are there any laws in MA that prohibit me from not renewing a lease of a tenant that did not have any violations?

They are cheap.Ryan:I am a firm proponent of everyone should be accountable for themselves and agree that separate metering is the preferred way to handle utilities.However, I also know from experience it is not always possible (not all jurisdictions permit sub-metering) or feasible (ie. it may be cost prohibitive to separate water feeds to each unit or replace or replace a common boiler) to separate utilities. 

Their questions are:1" In regards to prohibited flammable materials, propane grill is ok ?

The problem is that legitimate houses such as yours (hopefully) are given a bad name by people who claim to be running "sober living" houses as a way to try to get around zoning codes that prohibit rooming houses.  

thanks guys n gals yep the lease agreement in this instance that she just signed says leased premises are for residential use not business use.. her argument is occasional client visits to her home are normal in her profession.we are still sticking to the presiding reasoning that disclosing the owner's SS# isn't warranted as the lease prohibits business use, thanks but she is being persistent and threatened to petition IRS that our owner's rent roll should be 'audited'! 

The TREC specifically prohibits it unless it is insured properly and etc...How do my fellow Texas BP'ers feel about these fun but I guess particularly litigious things?