Trying to sell my home but the neighbor has gone over the edge and has post numerous offensive and obnoxious signs on his property

You should contact a local attorney (one in your state) who has some experience in civil litigation. he can go to court on an order to show cause and attempt to secure the court order stopping their neighbor from doing these things. Please note that by attempting to answer your question, I am not acting as your attorney. I will do nothing further to protect or preserve your interests in the absence of any additional discussion with you about this matter. John Ratkowitz, Esq. Starr, Gern, Davison & Rubin, P.C. 105 Eisenhower Parkway Roseland, NJ 07068 Office: (973) 830-8441 Cell: (732) 616-6278 Fax: (973) 226-0031 Email: jratkowitz@starrgern.com  Skype: john_ratkowitz Web: www.starrgern.com