Useful Plugins to help you and your clients:
To add a landlord, please type "Add a Landlord" into the search bar and click onto the icon for adding a landlord.
Fill out the fields on the form accordingly > once you click "save and close" you can click "edit" in the top right and go back in to add the bank details.
You can fill these new fields in too if you have those details to hand, or you can return later to fill in that part.
Click Save and Close again.
Now you can apply any addresses to the landlord profile by clicking "Contacts" on the left and filling out the details accordingly.