Choose a smart lock around the household
A keypad can make entry easier for a trusted visitor without handing out another permanent key. A connected product may also offer remote management or compatible phone access. Choose the feature that solves the actual need rather than assuming all smart locks do the same things.
Schlage Encode Plus, for example, offers Wi-Fi functions and Apple home key on supported Apple devices. That is a particular feature set with a particular installation requirement. We can discuss smart lock installation in relation to the door and equipment you use.
If the door needs lifting or a hard pull to lock, include that problem in the request. A new app feature does not correct every issue with the opening. The lock needs suitable preparation, clearance and normal operation when the door is closed.
Keep the owner in control of the administrator account. Review former users during a property handover and use the manufacturer's supported ownership-transfer process. Account access for a previous contractor should not be overlooked simply because the physical keys have changed.