Hey @TheDogLady!

Thanks for posting in the Seller Community.

I would suggest you take a look at Team Management for this. That way, he can accept payments on your behalf. With the right permissions, you can provide him with his own login credentials, and he can sign into the Square app. He'll be able to take payments, and you can grant him access to any of our other features. 

If you're interested in this, and would like more information, please don't hesitate to give us a call.