Hello kmed34,
Thank you for reaching out to Apple Support Communities, and we'll be happy to help in any way we can. We understand you're having issues with enrolling in Remote Management. We recommend following the steps listed here to see if they resolve the issue: Prepare your Apple devices for working remotely
"Prepare devices for working from home or remotely
Your first step is to determine which devices employees can take home. Then, you can use your mobile device management system (MDM) to quickly set up iPad, iPhone, and Mac computers with content, settings, and restrictions to support remote work for your employees. Learn more with the deployment overview for iOS and iPadOS and the deployment overview for Mac.
Below are suggestions to help you prepare devices for remote work.
For corporate-owned devices
Adjust settings to make sure that employees can work remotely when they take devices home.
For personal devices
Provide instructions for User Enrollment—a new enrollment method designed for bring your own device (BYOD) deployments. This lets employees enroll their devices into MDM so they can access additional apps and resources for home use. Learn more about User Enrollment."
We hope this helps.
Cheers!