Azure Data Sync Between Two Azure Databases
Yes, you can sync up to 500 tables on a sync group (per user). So you just need to create a sync group and specify which tables you want to sync. You can have up to 5 sync groups per database.

You must have a hub database (it must be a SQL Azure Database) and you can have one or more member databases (let's say one on Azure SQL Database and another member SQL Server database on your local machine).