Some of those sites employ non-native speakers and writers without university degrees and that might impact on the quality of their works. To avoid this, read as much custom reviews as possible. You can also check the requirements for applying on the service as a freelance writer.
Time management is critical since your instructor has given you a strict deadline. The company should be in a position to deliver your order within the agreed time. You do not want a paper writing service that takes longer to deliver your job, hence causing you to submit the paper late. Agree with the writer, the amount of time needed to have the job completed.
Not any writer who can produce a high-quality job for you. You need to ascertain that the essay writer is a specialist in your respective field. Consider the academic qualification for the writer who will be working on your order. Ensure that writer has the required expertise and experience to deliver a good job.
Specialists were needed to copy text and preserve crucial documents during that period. By then, proofreaders and editors were in great demand. The editors were allowed to change the format, and then the interpretation of the work they were handling. This gave them almost absolute control on the work.
Remember that you have enlisted their services. In other words, they are working for you. Their work is an investment in which you have put money, and you deserve good returns. They should give you a free title page, formatting, outline, and bibliography.