Could My Mom Get Arrested For Sending Someone After My Brother?

Long post so beware, but I (F18) live with my friend (M19), sister (20), mother (52), and two brothers (15 + 17). My brothers (who I'll call A and B for simplicity sake) were adopted 7 years ago when my step-dad (56, dead) wanted to play dad. Something to keep in mind is that A, the 17 year old, has to be woken up to do things gently, no matter the circumstances, otherwise he gets cranky. Now he only really has one chore to do in the house, being to take out trash every night and take the cans to the curb when he gets home from his girlfriends. Usually, he does this with a 65% success rate, as he sometimes needs reminders about taking the can out and what not. Well, the other night he came back pretty exhausted. Not too long after he went upstairs, my mom asked me to ask him to get the trash out. It was around 10:30 at night and he had already been home for about 2 hours, so he was already asleep. I woke him up and unfortunately he wasn't the biggest fan of having to take the trash out late at night. So, the two get into an argument as both of them intersect in the kitchen. It started off as arguing but then quickly devolved into a physical altercation, in which I had to separate the two of them. My mom ended up calling the police and they charge him with battery. After the cops leave to create a report number, my mom calls me into her room to talk to me about something. Now, something else to keep in mind is I have a much older brother (28) who is a convicted felon. She tells me how she's going to shoot him a message and essentially arrange for A to get jumped. This of course was met with disagreement throughout the household, but she essentially locked herself in her room because the rest of the house disagreed with the fact that a 17 year old shouldn't be getting jumped by people nearing their 30s. As the days have passed, she seemingly forgave my brother, but has admitted to me that she still plans on sending someone after my brother. Earlier today, she told me to ask B to make sure his room was clean "incase company comes over." A and B share an upstairs space and essentially have the same room, so this immediately set off red flags for me. A has been staying with his girlfriend ever since the incident, but she wants him to return tomorrow.

Now, here's where I need the advice: Would my mom get charged if it's found she intentionally sent people after my brother? Is there anything I can do to help protect him? And what would I need to prove it to the police before anything can happen? I live in Virginia if that helps any. Again, sorry for the long read, its just a weird situation that I've never anticipated myself being in.