There's often one family in every neighborhood that simply causes trouble for others, no matter how people try to get along with them. Perhaps they have loud parties almost every night or children who torment neighborhood pets or bully other children. When you've honestly tried everything else, here's a spell to help them find a better place to live: a place away from you where they will be happier with their neighborhood.
Find a green candle, one large enough to burn 30 minutes a day for at least a week. Make up a short chant something like this:
Bothersome neighbors go away,
find a much better place to stay.
A place where you will be happy,
I will be happy,
and all around you will be happy.
An affordable place, a nice place,
A much better place to stay
So long as it is far from me and mine.
Bothersome neighbors go away.
It'd be better to make up your own, especially if you can personalize it to the people in question. Just make it positive and upbeat. The idea here is that you are helping these folks find something better than they have now and helping yourself to peace and quiet at the same time.
You'll also need paper and colored pencils/pens/crayons/whatever.
Each night light your candle (cast a circle first if you want one), imagining the flame as a spark in their mind which will lead them to a new home. Then sit down an stare into the flame for 5-10 minutes concentrating on your desire that they find a new, better place to live where they will be happy and annoy no one.
Then take up your pen and paper and draw while chanting your chant. Stick figure art is okay if that is the best you can do. The first night draw your neighbor's (current) house with them doing the annoying types of things they do. Make it complete even if it's simple art. Put in the trees, windows, and the like. When you are done, wait for the end of the 30 minutes, concentrating on the candle flame and your goal. Fold the paper up and tear it to small shreds. Put out your candle (and close your circle if you created one. Save the torn scraps of paper.
On each night for the rest of the week, repeat the ritual, but the art will change. On the second day, draw them excited and happy in front of their current house -- because they've found a better one. For the rest of the week, draw them carrying various stuff out of their current house (as if they were moving). The key thing here is only show there current house. You don't want to limit possibilities by drawing a new house for them.
After you've done this a week, put all of the scraps of paper and some of the tail end of the candle in an envelope and bury it or hide it on the property line between their place and yours. If you've used large sheets of paper, you only need to include a portion from each if you need to keep the envelope small.
Note that a spell like this can take a while to take effect. Most people do not pack up and move overnight.