Long Term-Virtual Assitant

Looking for a personal assistant to help keep our fast growing start-up organized. We need someone who has the following qualifications.

-Great English(Speaking, writing, reading,etc.)
-Fast learner
-Work US Hours(EST)
-Proficient at Microsoft Excel
-Understand calculations
-Be extremely organized
-Know how to navigate PayPal well

The task are not very difficult just time consuming.