I think you missed what I said. No courts are involved- if your rent is $2000, and the handyman was $1000, you send the landlord $1000 for the month along with the handyman's invoice. What are they going to do about it?
File eviction papers? Refuse to renew your lease? (though I understand this would probably not be an issue in this situation since you wouldn't want to renew) Ignore all future maintenance requests? Stop upholding other parts of the contracts? Try and tank your credit? The list goes on...
I used to think like you appear to on this issue, but it's a different story when you are actually in the thick of it. Just like how people say "well that's against labor laws" or "your employer can't do that legally", it doesn't really matter for the person who needs that job to survive, they can only find a new job or put up with it, they don't have the money/time/energy to fight it. It's very similar to dealing with a bad landlord. I don't care about being right, I just want to be happy. Renting leads to unhappiness for me, it doesn't make how right I am, I still have to deal with the landlord's BS. At the end of the day "legality" is cold comfort if you have a toxic landlord.
I think what you're missing is rather than taking anyone to court yourself, you control the cash flow (when & how much of a check you write every month), and they're the ones who have to do anything about it if they disagree. That's different from a labor dispute where you're the one getting an attorney, filing a lawsuit, etc.
The broader point is that blue states are very pro-tenant, so you're starting off with an incredible advantage
Bad landlord, they say you over inflated it, and are now behind on rent. This gives them the opening to evict, or you have to take to small claims, or your local tenant's rights group.
Not fun.
You: Here are 3 emails I sent documenting the problem and asking for it to be fixed, here's a 4th email stating I would be hiring the handyman myself if it wasn't fixed, here's the 5th email with the invoice
Landlord: (who cares. Also they don't have an attorney because the cost of an attorney in court exceeds the repair by a huge margin)
Magistrate (in the 15-20 minutes you get in small claims or housing court): Landlord, you are fined $5000 for not fixing the issue fast enough. Next fine is $10k if you don't shape up. Dismissed