This depends on the length and complexity of your material, as well as the Tasker’s familiarity with it. Usually, a proofreader can handle 2,000 - 4,000 words an hour. If you want the Tasker to do copy editing and proofreading, they may be able to handle around 1,000 words per hour. If you need help with your business documents, you can also use Airtasker to hire a legal expert or admin assistant near you.