If your neighbor was prescribed medical marijuana they may have a legal right to medical treatment in their home. Additionally you could be sued for libel for publically accusing some one of being a felon. Only a judge may declare some one a felon.
If you believe that your neighbors are committing a crime you may want to speak with a lawyer about what legal options you have at your disposal.
You reap what you sow and do on to others as you'd have done on to you. You should consider deleting this post and consider a more productive way to resolve your issue.