I will also add in the caveat to document everything on your employees. Keep a file locked away from them with everything. Every time you have to correct them, document it. Everytime disciplanry action is taken, document it. Every time there is a complaint about them, document it.
For any formal discipline - suspension, major screw up, showing up late repeatedly, etc, have them sign a form acknowleedging what they did wrong and what the consequences are. Never use the term "punishment" with an employee. It can be construed as retribution or harassment.
At some point, an employee will be bad, or turn bad. You will fire them, or want to. And they will threaten a lawsuit. You might need documentation to cover yourself.
We just had an employee I've been trying to get fired for over a year quit. She was toxic, but also friends with part of admin. And her husband is a lawyer. They adjusted her duties, cut her hours, even moved her from site to site and she still wouldn't quit. I had filed at least a half dozen formal complaints about her. Her own boss hated her. But admin refused to fire her. She finally up and quit last week. Sigh of relief. But she apparently sent a text to another employee yesterday "Just wait until they see the lawsuit..."