Does the lease address this issue.

It’s always tough to walk away from something, but we can only give our attention to so many things effectively.

Sometimes this approach can gain the respect from others with how you addressed the situation because they know you could have just filed the complaint with no warning. 

Thirty days noticed needs to be giving and the termination fee must be submitted at the same time as the 30 day notice in order for the termination to go into effect.

Google the address - you'd be surprised what you find.

Good news tho, the State of Mass just made a major revision to the lead paint laws that went into effect on Dec 1, 2017.

To address your cap limitations, there are lenders that will have specific low down buy and live in programs with competitive interest rates that allow you as an owner occupant to finance a 4-plex as long as your live on site for a full year. 

Also might need to get a business license(occupational license) specifying the new address for the business.

From what I understood according to this article here https://smallbiztrends.com/2014/03/register-busine... foreign registration wouldn't apply in my case, since I wouldn't have a physical address or employees or a warehouse or a physical property I buy and hold in that state. 

The ADU is a separate building from the main house, but is the same address (unlike a duplex).When you calculate your proration for expenses, do you consider un-rented days as personal use days?