texts to feed information within areas of a website

What the title says, that is. I have within my website some services that require texts to enrich the information contained in the various areas, these texts should describe the service provided so that the person who applies must know the concepts of the development of some services provided, also You can be in touch to know about the services that are offered to the clients within the contractor company. Texts that describe sections such as about us will also be necessary, among other texts that should be released from copyright for free use in any area within the site, the applicant must know that by applying for this development he refuse any rights he may have on the use of the texts offered as a commercial exchange, so the contractor is free to edit, update, cut, manipulate and modify the text for any site inside and outside the site where it is intended to be inserted. English language proficiency is required as texts will be written in this language. Apply with real or detailed prices in relation to the number of words to contain or price per article. It is not allowed to use or add our brand, logo, domain name or other images or texts that could be covered as publicity to the work that the applicant has done, it is expressly forbidden to announce that the collaborator has participated in some way in the development of the website.