Magento 2.x - Fixing and Building

I have a project that requires the following work to be done: Additional work: * Complete regression test of the whole site - come up with bugs etc. Fixing: * A user can register, although when I delete a user from admin in magento, the user cannot register again. * Update about us page with content from original site. * Post code validation adjustment - three letters, four numbers. - Minor Mask Adjustment [login to view URL] * When an error is encountered in any form, the data is lost, we need to change this to keep the data. * Send product to friend - has minor issues, when adding multiple invitees, the remove button is in the input (should be outside of the input). Building: * We have a custom attribute for a product that has authors (searchable and multi selectable) - although this gets slow when having 2K authors, and it's very hard to maintain from the original attribute page. * What we need to fix this is a custom page with a list of authors that is searchable, maintainable, paginated, easy to create, delete etc. - as seen here: [login to view URL] - then in the product page the attribute should not load all authors, instead it will do an ajax call with the search term and get the matching authors. Any other issues that arise from the regression test will be moved to another project.