Help Author For Accounting System

We have developed an accounting system and are looking for someone to develop a help manual for the following modules: General Ledger Accounts Receivable Accounts Payable Banking I would like one manual for each module. The manual will be a Word document with appropriate screenshots. Freelancer will have access to the accounting system and also to the system designers if needed. In addition to the specifics of how to perform various accounting functions, the manual should provide accounting rationale for the various functions.