Access and Privacy - Can a Landlord/Agent Hold an Open House?
If a landlord/agent wants to hold an open house, (where members of the public are invited to view the property that is for lease or sale) they must receive written permission from the tenant. If you agree to the open house, the landlord/agent must be in attendance during it.
A landlord/agent cannot force you to give your permission for the open house and you should only give permission if you are comfortable with the idea. If you do give permission, it is a good idea to remove or make sure that valuable items are not visible, to minimise the potential for theft. (Photos are sometimes taken by the Landlord/Agent and displayed in advertising).