Can landlord move tenant's property?

[Aman Kaur]

We have a tenant who has used space in our property which does not belong to them nor is in their lease and stored many boxes over time.  We have given them notice to remove those boxes and put them in their assigned space in their lease by end of the week.  As a landlord, if they have not moved their boxes, can I move them off my property and onto their space? It does not look they will comply with my request. We now need that space and plan to rent it out starting next month.  Please let me know if this is legal to move tenant's property.

Thank you.