What kind of weekend management chores are you doing or having problems with.
I have a Windows server running AC. I have 5 wired client computers and 3 wireless laptops connected to the Server.
I have had no major problems for over a year now.
I connect to my server after hours and on weekends through Remote Desktop Connection and everything seems to work just fine as long as your staff does not meddle with any thing.
Backup is done through AC Automatic backup to 2 local hard drives and remotely through FTP to my home on a seperate Hard drive.
The only issue I can think off regarding outsourcing are PRIVACY & MEDICOLEGAL issues regarding your patients and their chart data.
Grenville