Saas Software testing - Only for team, not for individual

:::: Please make sure this project for company or team who has lot of testers, we need 50-100 users testing at same time:::: I will report your profile if you apply without reading it. --- DETAILS-- We are SaaS platform for legaltech. Our version 1 is almost ready and we would like to have a full test with at least 50-100 realtime users. Processes are very simple and one path takes less than 5 minutes. 1- User can upload pdf documents, invite signees to sign, sign the document and export pdf. ( Involves two users group -- Document uploader and invited signees) 2- Create a document using the template in our system by simply answering questions, preview document, go through payment, invite signees, sign the document and export. In this case, signees can also make a comment on document. These two are the main path which is straight forward. Other parts are extra stuffs such as deleting, adding signees, removing signees, editing document, setting, profile, and all basic steps. We are in tight schedule so the work should be done quickly and proper report with possible screen shots should be presented.