Tenant wants to withhold rent

[Tu Anh Nguyen]

Tenant says he has the right to withhold rent because I failed as a landlord and will not pay rent until everything is fixed. Here is the story

1) He says he has been having roaches problems but I have sent different pest control companies to his unit. One was late and he would not let him in. Second company treated unit but he says roaches are still there. I called company to come back but he did not let them come in. Now he wants me to treat the entire 4 unit

2) He wants his windows replaced. I have plans to replace his windows but he also told the company he doesn't have time because he has a doctor's appointment the day of install. This was after I had already confirmed with him the day before. With the recent rain in LA, I am trying to schedule the company to come back

3) Bottom of his door has a gap so I am sending out handyman to fix it

Long story short, I have tried my best but he thinks I'm not a good landlord and doesn't want to pay rent until everything is fixed. This is the second time he has used this tactics.

Any recommendations or does anyone have a good election lawyer who will protect the landlord in Los Angeles?

Thank yoiu in advance