What to do when tenant leaves garbage in common areas?

[Linda Roberts]

Hi, I am a new landlord, and I have tenants on the second floor that constantly use stairs as an extension for their apartment.  Front hallway and the stairs are packed with recycling, bicycle, mail, amazon boxes ,closes... It's a violation of fire safety and sanitary code. I asked many times to remove, but even if they do it, everything is back in a week. What are my legal options? I have other tenants that complain about it. Can I remove it and put in a basement or other storage? What legal steps should be done to document this mess, other than just pictures?

Appreciate your advice.