Hi Bridget Powers,
According to your description, my understanding is that you want to move domain name SPORTS-ORTHO-MASSAGE.COM and SPORTSORTHOMASSAGE.COM in Office Live Small Business to your Office 365 account. If I misunderstood anything, please correct me.
I have checked the domain name you provided, I’d like suggest you do the following steps：
For domain name SPORTS-ORTHO-MASSAGE.COM:
The checking results indicates that domain name SPORTS-ORTHO-MASSAGE.COM is hosted in Office Live Small Business. Since Office live Small Business is now closed. So you can refer to the following steps to add this domain name in your Office 365 account:
1.You can contact Melbourne IT and change the name server to Melbourne IT first.
2.Add your custom domain to Office 365:
Office 365 for enterprises: http://onlinehelp.microsoft.com/en-us/office365-enterprises/gg584188.aspx
Office 365 for Small Business: http://onlinehelp.microsoft.com/en-us/office365-smallbusinesses/gg584174.aspx
After doing the steps above, you can set up your email address in Office 365 account.
For domain name SPORTSORTHOMASSAGE.COM:
You can add this domain name in your Office 365 account by referring to the articles above.
In addition, I’d like to confirm whether you got any error message when you add this domain name in your Office 365 account. If so, please capture a screenshot of the error messages so that we can do further research.
Thanks,
Vivian Wang