Before you proceed, make sure that the property address, as well as the residnet is added in Latchel. Otherwise, you can follow these help guides:

How to Add a Property

How to Add & Manage Residents

Log in to the Latchel portal. Then, On the upper left-hand side of your dashboard click Places then Properties.
You can also go to People, then Residents to search of the Resident’s name as an alternative method of searching for the resident’s name.
Then search for the property or select from the list below and click it.
On the property page, click the Residents tab.
To modify the dates, click the Ellipsis icon next to the resident’s status. 
A drop-down will appear, Click on Edit Resident Move Dates.
A pop-up will appear where you can specify the move-in date and move-out date for a specific resident. Click Submit to save.
This will populate occupied dates next to the resident. Once the move-out date has passed for the resident, the status will update to Not here.