A 'Blog' app, including 'Threads'

I wish to find someone who can create a blog app for me that includes a homepage including four subtitles. After clicking on one of these 'subtitles' my intention is to allow people to create blogs relevant to the 'subtitle' they had clicked. This page will also include a 'Search Bar', three 'Sort' buttons. The heading of the 'subtitle' page will be displayed on the top of the app, with the search bar just below, then the sort options under the search bar. What people will see on this app in the 'subtitle' section is a list of peoples blogs with the name of the blogger, the name of the topic, (I wish for one of the sort bars to be sorted by most popular, and most replied) along with the date the blog was started and last edited. With these blogs that are wrote by people, I desire an "easy to read" replies and comments to the thread, so that way the blog can continue. (** I do apologize, i believe the proper request may be thread, as well as blog **) An easy to write text box would be desirable along with a place to upload images. I however would desire a report button, so that way inappropriate material may be suspended and the person that uploaded be warned. I wish for people to be able 'Sign up' to the app, to place comments and post threads. The public may see threads, but may not be allowed to access 'member' content. I'm not sure on what skills that are required to do such an app, feel free to discuss if you believe more skills are required