Possess excellent knowledge of reading, writing, grammar, spelling, punctuation, proofreading, and formatting in order to interpret source data, prepare complex client billing, proofread material for grammatical, typographical, and spelling errors, and perform file maintenance. Ability to perform mathematical calculations and apply mathematical concepts when computing, reconciling balances, verifying numerical data, processing complex client billing, preparing various billing reports, reconciling appropriation of account funds, and processing write-offs.