Example a few weeks ago: got a "customized' postcard saying something like "Dear Andrew, we noticed you recently bought a property on 3455 Main Street - we have access to many properties just like this one, all over town.  

Because the answers to these questions are site-dependent, you'll need to check with your local zoning and permit departments. 

In total, we spent about 6 months ironing down the window size, materials, color, and any exterior changes visible from the street.Getting Exterior Changes ApprovedGETTING TO WORKOnce you get through historic and planning, the building department (ISD) is a whole different animal to wrestle.

Yes, contact the City of Cleveland Heights-Housing Department if you did not already, they should guide you in the right direction.

One other MA change on the health care side is they have lowered lead levels of children on which action from the state will be taken in MA so more people with see health department intervention earlier that has it upsides. 

You could try to reach out to the city department responsible for it to rectify it, but if the tenants have already done so and they've confirmed nothing is wrong...

To get into compliance, if it is even possible, you will need to speak to the city planning department to see if the property is eligible for rezoning, a special use permit, a guest quarters, or an ADU.

Would recommend 6 acres up to 15 acres.Stop by the Building/Zoning department. 

That said, I think the reason many building departments are so stringent with investors is the illusion that most are looking to cut corners for the sake of profit.

You may be allowed another use besides residential, however you need to confirm that with planning department where this property sits.