Update and revamp website and add upgrades

I need my website updated and issues fixed. I need the website to work great on all mobile devices and on all browsers. I also need my contact forms updated and some pages reorganized and updated to look and function well. I need the SSL certificate to be checked and updated. I need to update some images and contents. Also, I need the website to improve in SEO. The website will require adding: (1) membership subscription service with fee being able to be collected based on selected plan. (2) certain service provider can become subscribers/members and to list their services, experience, qualifications on their own page on my website for the subscription fee plan they choose. (3) consumers can find the service providers which are my subscribers on my website and can contact them directly. (4). Consumers should be able to rate service providers after they use their service using a 5 star rating system on my website. (5.) the subscribers will each have their own page/listing on my website, and this should be searchable listing based on zip code, city/state, specialty, area of service, type of service, ratings, language, and a few other filters that need to be built in the system. (6) More pages will needed to be added to website including one for sponsored advertisement, and one for links related to the services we offer; these are expensive lists that will help consumers browse and click on their links. (7). the website needs to keep close to its current nice looks but needs to improve the looks and make it better, more attractive and more updated. (8). There needs to be a function for technical support tickets that subscribers can submit. (9) ability to pay subscription using paypal or other ecommerce cart. (10). this needs to be added to current website which is in word press and has custom themes.