There are two ways you can edit a property's information:
From the Lead Page
To edit the property information from the lead page, click on the pen icon on the properties section of the lead page.
Here you can Edit:
Property Info
Unit Info
Custom Fields
From the Properties Page
To edit a property from this page just simply locate the property you want to edit (you can add filters or activate search by hitting CTRL+/ on the keyboard to narrow down your results) and click on in.
From here you can:
Add a unit.
Edit property details.
See the leads under this property.
See the processes in which this property is present.
Upload Photos of the property.
Edit Custom Fields.