You have absolutely no legal rights to touch your neighbors property, you can however call the city you live in, 100% of all cities have body in place for code enforcement. Make use of that.
There is a solution that you can get at Home Depot or Lowes called GOOF OFF. This will remove your paint though. Hopefully the adhessive is on your windows or bumper.
Yes, a creditor can remove a charge off from your account and your credit reports. Credit bureaus can also delete charge offs from your credit report if they are disputed and not verified.
Have worked w/leather over years as well as having worked on own garments, etc., making repairs. Hope this might help.
If leather is smooth (not sueded), you can't actually remove a scratch but you...
There is an excellent product put out by Lysol (the liquid is green ... smells like apples ... and in a spray bottle.) It can be bought at most stores. I buy it for my kitchen especially to use...