My question involves real estate located in the State of: Massachusetts

I have 2 new neighbors, one on each side of me. My neighbor to the left of me purchase the home as 2nd home so is mostly there on weekends. He has 2 little dogs, their bark is the equivalent to a high pitched shriek. It sounds like the sound a dog makes when its badly hurt. These dogs bark at all hours of the day and night. The noise apparently doesn't bother the owners. The noise is so horrible that the neighbors have complained about being woken up, not being able to sleep and not being able to enjoy their own property. I had guests one day last summer. I was entertaining outside and the barking was so intrusive, my guests asked to go inside. The noise wasn't much better. After closing the doors and windows and putting the AC on, you could still hear the barking. My guests couldn't stand it and left. During the summer, regardless of the temperature, I generally sleep with my AC on and ear plugs in an attempt to drown out the barking but I can still hear them. I can't sleep with ear plugs during the week because I won't hear my alarm clock so it's a double edged sword for me. I feel that if you own a pet, you own the responsibility of proper training. There really aren't many bad pets but there are bad pet owners --they live next door to me. My neighbor to the right is a renter. He has a car with a faulty muffler. It sounds like a motorcycle. He too has been spoken too because he wakes up the neighborhood almost daily. He can't afford to fix his car so one of the neighbors offered to pay for the repairs just so he could sleep past 6:30 am. The renter refused the money. You can hear his car coming and going for several blocks. I work an odd shift so I'm in bed by 7:00pm and up at 2:30am. I'm pretty understanding about normal noise during normal hours even it disturbs my sleep. This isn't normal noise. Both have been spoken too multiple times but the noise continues. What can be done to return the "quiet" to our quiet neighborhood?