You need to hire a lawyer immediately and have them get a hold of the court and explain the situation. That lawyer should be able to get a quick answer as to whether the Judge will allow them to enter an appearance on your behalf.
You certainly need to plead not guilty. Otherwise, you are exposing yourself to an unlimited range of punishment right of the bat. The Judge would most likely explain that to you if you attempt to plead guilty at an arraignment. You should either hire a lawyer, or get a public defender appointed if you cannot afford one. The dollar amount that you are accused of stealing in just over the felony amount, and you may want someone to take a close look at that among other things. If you were accused...
There is an easy way to take care of the pre-trial no-contact provision of your release. You can enter a no violence order which allows contact, just no violence. It helps if the alleged victim will sign on to the idea.
You need to document all of your run-ins with the person who is harassing you, as well as all of your calls, etc. to the police. At some point, perhaps they will take action if necessary. You also may want to consult a local attorney that can address the problem directly with the courts.
Suppression of search warrants is a very complicated area of the law. A clerical error in of itself does not invalidate a warrant. However, certain things do. If the wrong residece was actually searched, that is certainly something you need to get an attorney to look into. The totality of the circumstances involved could lead to the warrant being suppressed. You need to get an attorney to look at it very closely.
You are not eligible if convicted of a felony, unless you are granted a pardon. Misdemeanor charges can vary, but you probably need to consult a lawyer and prsent him/her with any and all paperwork to make certain.
Your friend needs to be clear as to why the lawyer did or did not appeal certain issues. The lawyer very well may have valid reasons for all of his or her actions. The appeal may concentrate on a few strong appealable issues rather than simply taking the "kitchen sink" approach.