The Progression of Office 365 for Small Firms

When does it make sense for people or businesses to move from one of those types of Office 365 accounts to another one? And is Personal enough for like the regular kind of very small law firm? You can buy exactly as many licenses as you need. With Office 365, any seat of office will work on up to five devices at a time. It's all part of that $12.50 per month plus smartphones, iPads, etc.