How to strictly serialize replication of one folder using Windows DFS replication?
Solution 1:
No, DFS Replication doesn't support this; it's asynchronous by design and there is no way to make it perform synchronous replication, or to guarantee that the order of operations is followed.
I don't know the inner workings of your application, but it would seem a lot easier and safer to just use a common network share which both servers can access. Or, if server B really wants to find the data on a local disk, just create a share there on which server A can write.