Illegal Lockout by Landlord | subletter trashed my apartment

I publish illustrative scenarios prepared by my practice. All participants and conversations are fictional. The fictional posts are not posts by real users, accounts of client experiences, or reports of actual results.
Illustrative scenario prepared by my practice.
For informational purposes only. This is not legal advice. Laws vary by jurisdiction. Consult a qualified attorney for advice specific to your situation.
Hypothetical question

I've been trying to resolve this on my own but I'm stuck.

subletter trashed my apartment. I've been dealing with this for about 13 weeks now and the situation isn't improving.

I have been in this property for 8 years. My monthly rent is $3,313. I have a written lease.

Am I overthinking this or is this a real legal issue worth pursuing?

Illustrative response

I went through almost the exact same thing.

What trips people up most is hiring an attorney to send the initial letter. I'd recommend being patient with the process instead.