Please. Whoever said she was there NOT for the money?
You are confusing two separate issues. Money the couple owed to her and second, a felony charge against her. We are talking about the second one here, which has nothing to do with the money. Right now there is an arrest warrant against her. She could potentially be charged battery, assault, assault with deadly weapon, etc. I am just guessing here since I did not see the warrant. However, rest assured it is not a simple battery, or a criminal trespass or otherwise there won't be an arrest warrant.
If she is indeed charged with a felony and convicted, she could potentially face prison time and a severe fine, plus anger management classes. Again I am just guessing here. She must get a criminal defense attorney to help. If there is a conviction, there is no chance of expungement and the criminal record will be there forever and it is a lifelong deal because it will affect her in so many other ways, later in life. We call it collateral damage.
I know an administrative judge who deals with licensing issues everyday. I have a client who committed petty theft and later wanted to get a nursing license. You do not know how big the impact a criminal charge would have on one's professional life. California for example, there are more than 1300 professions which require licenses now. One strike and you are out forever. Is an acquittal good for a defendent? I used to think so. But it is a worst thing that can happen to a defendent if she or he wants to get a professional license later on. These are the consequences only an attorney can ascertain. Criminal law is NOT something you can DIY.