It is possible to remove the ‘Powered by Jetpack CRM’ footers on the CRM login page, CRM forms, CRM emails, and the Client Portal. To do this please follow the steps below:
In WP Admin, go to Jetpack CRM > CRM Settings.
On the Settings page that loads, click General on the left sidebar and look for “WordPress Override Mode” section.

Find the Show public credits option at the end of the “WordPress Override Mode” section, and uncheck it.
There is also another option that can be set up, which is Show admin credits: this feature will show “Powered by Jetpack CRM” footers on backend admin pages.

Don’t forget to save your changes once you’re done editing the settings by clicking on the “Save Settings” blue button at the bottom of the General Settings page.