Support for accountant public practice?

Has any one developed or used Zoho to support an accountant in public practice?

Typically accountants have the same clients and do the same service(s) for each client every year (or quarter etc)

The key question is can one assign a project to a customer?

For example 123Client

Could Have project Bookkeeping

Xyz client could also have project bookkeeping but possibly also tax return.

Thanks