Can I have multiple Mark Sign accounts?

Yes, users on the Professional, Team, or Organization plans can have two or more accounts. 

The first one is a personal account, where you can always sign and store personal documents. 

The second one is a business account, where you can sign and store work-related documents. Starting from the Team plan, you can also share documents and create shared categories with your colleagues. 

To switch back to your personal or business account, click on the company name in the menu bar and select the desired environment. 

To change accounts, click the arrow in the menu bar and choose the environment you want to access.