Yes, absolutely. The Tulo App and Web Portal are designed to let you seamlessly switch between accounts and manage each property individually.
Just log in and select the account associated with the property you want to view.
In the App click the + symbol on the navigation bar (between Readings and Billing) then select Switch Account and select the account you wish to manage.
In the Web Portal select the account you wish to manage from the dropdown list in the top right hand corner of the screen.