If you have successfully added others in the past but are no longer able to add anyone new then you have reached the maximum number of additional tenants.
As per our policies a rental may have no more than 10 additional tenants at any given time. If you wish to add some one new to the rental you will need to remove some one else first.
Please only add people you trust and are comfortable sharing your rental with.
Adding others to the group will also add them to your rental as an additional tenant.
Additional tenants are granted certain rights and allowed to make limited changes to your rental.
Please also keep in mind that you are responsible for the behavior and actions of your additional tenants.