You can generate leads for your clients just as you do it for yourself.
What do you need?
You would need access to client LinkedIn Credentials(username and password)
Signup for a new subscription with YOUR own email - https://linkedofy.io/pricing/
After you signup Go to Dashboard settings and change the email to your Client's email as shown in Image below.
Note : This will ensure your clients do not receive an email from Linkedofy.
Now you can login to Linkedin using client credentials and Linkedofy Desktop App will recognize the account automatically.