so sorry you are going through all this crap. firstly, let me give you props for not retaliating. People like this "Lori" person do not understand reasoning nor do they obey laws, they feel justified that they were wronged and are above the law and if you react back to them they feel vindicated in their own stupid actions.
As for hiring a lawyer I highly recommend it. If you feel that getting a lawyer is costly, here is a link to a website for legal insurance. http://www.prepaidlegal.com/. Basically you pay a monthly fee (depends on the state you live in) and you have lawyers on retainer. Check out the site, give them a call and ask what is the best package, recourse of action for you. It cannot hurt. And as was adviced, each time they harass you, whether verbally or trespass on your property call the cops. Eventually they will get tired of you calling and start to do something. Also, call your local news station. I'm sure all news stations have some kind of "Shame on you" segment. See what public attention might do to stop her. Bring to the publics attention that there has been a restraining order that was violated and ignored by a judge (yes name the judge). I've been through a restraining order against my stepfather and it was not pretty.
Stay safe and avoid this nut case as much as possible. Hopefully it will be resolved before something serious happens. You and your family are in my thoughts and prayers.