If you use the network version you should be able to do it… if you have PS on 2 devices (i.e. a workstation and laptop within the single user license) as long as they are both accessing the SAME data file you can have someone else do the efiling, etc. 

But to answer your question, hosting should certainly work… it’s a different environment and cost structure… you should definitely speak with a rep and ask a ton of questions before you change