There is such a danger as plagiarism. That is, you can get the work downloaded on the Internet from the options presented there of previously written work on similar topics https://foxiesessay.com/essay-app/
. In order to avoid such a problem, it is necessary to initially stipulate the moment of checking work for plagiarism before final settlement with the contractor.
Before you pay for the finished work, it must be carefully read. The work must be written concisely, consistently and in compliance with all established rules. It is necessary to have a list of sources used, conclusions after each chapter and the most thorough conclusion in the end, and an introduction and conclusion should be written.