Researcher/assistant

I am looking for someone that speaks conversational English that is capable of doing research on a wide range of subjects as needed/desired. They must be internet literate/savvy and detail oriented. They must be able to create work product in MS word and MS excel.

How i want this to work is I provide a task and researcher provides an estimate of the time the task is expected to take. Ideally, if the time required to perform the task is going to be significantly longer than the estimate, I am notified of this early.

Work products will be emailed to my email.

Ideally every 2 weeks researcher provides an invoice of tasks performed, time of each task, and pay associated with each task, and total amount owed. Pay would be via PayPal.

I am new to paying a researcher, so I do not know how many hours a month of work I can/will provide. I would like applicants to include their desired hourly rate.