pls find answers below

1) Do we have to cancel the RP of our old manager in order to get the new manager's RP?
***NO***

2) If our old manager Rp is cancelled, will his family RP will be cancelled as well?
***Yes***
will he still able to sign some business documents (eg. bank transactions?)
***As long as hie still on signature card and valid***

3) How long it takes to cancel the RP and process the new one?
***To cancell, 1 day, new onw 1 week***

4) How long it takes to process the new commercial registration & computer ID for the new manager?

***1 week***

5) is it the best way to provide the new manager with business visa, before we can process his RP?

***why u want to do that***

6) how long usuallly it takes for the bank to process for new authority.
*** 2 days***