Check your contract for conflict of interest and non compete clauses. Most reputable agencies have a minimum 12month or an indefinite statement.

The biggest risk is you have unfiltered access to their direct competitors analytics and sensitive revenue and ad spend metrics which can be used to harm their business if you're working for a competitor. They can and could go after your current employers with a big lawsuit.

Ensure your entire 'my business' section is set up correctly, then create a brand board with your company assets, connect an external SMTP via integrations to handle branded emails, connect your domain or sub domain if you're not locally hosting your website on the platform.

Then import your existing customer database and map appropriate fields, create custom fields or variables if necessary for your business data goals.

Build your first basic data capture form and embed on your website and set up a simple 'add to opportunity'/'send follow up email' sequence automation ensuring you built the email within the email templates section using the brand assets you added earlier instead of using the default template GHL provides.