Shared FTP Account Security

I’ve setup a sub domain and user for projects involving collaborations with other people whom will have access to the FTP account for this sub-domain. Is there any way to restrict FTP access to the home directory (were logs and Maildir reside)?

I would like it so there is no easy access above

Also is there any way of logging FTP access\upload\deletion?

Expecting a “No” and “No” here,