Virtual Administrative Assistant

I need a goal oriented Virtual Administrative Assistant whose duties vary day to day and on any given day may perform a variety of tasks which includes answering phones, scheduling appointments, maintaining calendars, scheduling and coordinating meetings virtually, preparing communications, such as memos, emails, invoices, reports and other correspondence, write and edit documents from letters to reports and instructional documents, manage accounts and perform bookkeeping. And the Virtual Administrative Assistant will be required to meet deadlines even though this is a work from home position.