Thanks to Patrick Gallucci via the mssqldba@lazydba.com listserv! Here's the fix:
This is because there is no DBO assigned to the db that is recognized on
the server.. Create a new account and add it as dbo to the db, then
change then owner to sa...
Example below
use MASTER
go
exec sp_revokedbaccess 'ACCOUNT'
exec sp_revokelogin 'DOMAIN\ACCOUNT'
go
use DATABASE
go
exec sp_revokedbaccess 'ACCOUNT'
exec sp_revokelogin 'DOMAIN\ACCOUNT'
exec sp_grant login 'DOMAIN\ACCOUNT'
exec sp_defaultdb 'DOMAIN\ACCOUNT','DATABASE'
exec sp_grantdbaccess 'DOMAIN\ACCOUNT', 'ACCOUNT'
go