This sounds like an exciting project!

There are certainly a lot of points to consider when putting together anything involving memberships, especially something like you've described. However, I won't go into every possible course as I believe the most likely route that will bring you success will be leveraging WordPress' multisite capabilities.

Essentially, I'd be recommending you setup a multisite where schools can sign up for their own subsite on your network. It is possible to pre-configure your new sites so that upon signup, each school gets a site with the theme, plugins, content, settings, etc. which you wish them to have. You can assign each new user with specific roles on their own site and your main site so that they will be able to participate in things like site specific or network wide forums.

To facilitate this, I'd envision using several plugins including:
http://premium.wpmudev.org/project/pro-sites/
http://premium.wpmudev.org/project/new-blog-template/
https://wordpress.org/plugins/buddypress/
https://wordpress.org/plugins/bbpress/
https://wordpress.org/plugins/join-my-multisite/

There are a number of reasons why I'd recommend this approach but I'll just mention a few important ones:
- This approach would allow you to bill the organization rather than the individual user (if desired).
- Allows for the simplest management of groups of users for active/inactive accounts.
- Organizations can have their own environment, complete with private groups, forums, content, media, etc.

Those are just a few reasons why I think this approach would be effective and appropriate. That said, I would say with certainty that a site like you've described could be built on single install of WP, simply taking full advantage of plugins like BuddyPress, bbPress, the many complimentary plugins for those and/or potentially some of the many other powerful membership plugins for WordPress.

I hope this is helpful. Please indicate if you'd like more details on any specific point. I'm happy to help.

It sounds like you definitely need a full picture solution, and an out-of-the-box WordPress plugin definitely won't cut it.

Also, make sure you're not looking for a UX unicorn (they're very expensive). http://uxunicorn.com/

I will share with you Membership Login platforms, but you must select it to see which one suits you the best:
1. Membership Press: MemberPress is one of the most popular WordPress membership plugins. It is also the easiest to use and the most robust when it comes to features.
Pros of MemberPress WordPress Membership Plugin
Easy to Setup – MemberPress makes it simple to setup a membership website with WordPress. It can automatically setup pricing, login, account, and thank you pages for your users. Adding membership plans is also very straight forward.
Content Access Control – MemberPress comes with powerful access control, which allows you to restrict access to any content including posts, pages, categories, tags, files, etc.
Content Dripping – Content dripping allows you to show restricted content to members after a certain time. This is a very useful feature for selling online courses or learning materials.
Integrations – MemberPress integrates with AWeber, MailChimp, GetResponse, and MadMimi email services. It also integrates with Amazon Web Services and BluBrry for podcast hosting.
Payment Gateways – MemberPress comes with built-in support for PayPal and Stripe payment gateways. Developer plan also adds Authorize.net support.
Cons of Using MemberPress Pro
Limited Payment Options – MemberPress only supports the three most popular payment gateways. This would be a deal breaker for site owners who live in countries not supported by these payment gateways.
Limited Integrations – While the plugin has enough support for popular services to run a membership site efficiently, it still lacks integrations with some other popular services. The plugin is easily extensible, and you can pay someone to integrate a third-party service you would like to use.
Pricing: Starting from $129 / year for the Basic plan and $249 / year for the Plus plan.
2. LearnDash: LearnDash is a super flexible and extremely easy to use WordPress LMS plugin. It comes with advanced membership modules and tons of integrations.
Pros of Using LearnDash
Easy to Setup LearnDash is quite easy to setup and adding content to it much more simpler. It also comes with advanced tools to easily organize your membership content into levels, groups, etc.
Easy Content Restrictions LearnDash allows you to easily hide any content and restrict it to different membership groups.
Sell Courses – LearnDash allows you to easily create and sell online courses. It has advanced modules that allow you to better manage learning material than other WordPress membership plugins.
Drip Content – It comes with powerful drip content feature allowing you to roll out content to users on regular intervals or upon completion of levels.
Built-in Community Features It comes with tools to create highly engaging membership sites with quizzes, user badges, course specific forums, certificates, user profiles, etc.
Integrations & Payments LearnDash offers an amazing set of integrations and payment gateways. You can even connect it to MemberPress, WooCommerce, bbPress, Slack, etc.
Cons of Using LearnDash
Lacks some membership features – If you are trying to build a membership website without selling courses, then some of LearnDash features may not be useful to you.
Pricing: Starting from $159 for a single site license with 1 year of support and updates.
LearnDash is the perfect solution if you want to sell online courses on a paid membership website. It is extensive set of addons, and integrations allow you to build a highly engaging platform.
3. Teachable: Teachable is an all-inclusive online courses builder. It packs membership website, LMS, discussion forum, email marketing, and analytics all under one dashboard.
Pros of Using Teachable
Ease of Use Teachable is easy to set up and does not require any technical skills at all. Creating membership content is a breeze and includes built-in tools to quickly create and upload videos, text, PDF, and more.
Drip Content It includes flexible drip content feature, which allows you to roll out content based on a users’ progress or subscription level.
Built-in Engagement Features It offers discussion forums, quizzes, contact forms, certificates, and other features to boost user engagement and build powerful online communities.
Cons of Using Teachable
Not a WordPress Plugin Teachable is not available as a WordPress plugin. Instead, you can integrate it to your WordPress site by adding links or a sub-domain.
More Expensive Teachable includes everything which makes it more expensive than other WordPress membership plugins.
Pricing: Basic plan starts at $39 / month, professional $99 / month, and business $499 / month.
4. Restrict Content Pro: Restrict Content Pro is a powerful contender for the title of the best membership plugin for WordPress. It is created by same team that’s behind the popular Easy Digital Downloads and AffiliateWP plugins.
Pros of Using Restrict Content Pro
Easy to Use – Restrict Content Pro beautifully integrates with the WordPress user interface. This allows you to easily figure out how to use it.
Built-in Integrations – Unlike other membership plugins, Restrict Content Pro comes with built-in integrations that other plugins ship as paid addons. It has Stripe, PayPal, MailChimp, MailPoet, email manager, CSV export, and many more features.
Payment Gateways – Stripe, PayPal, and Braintree come as free addons. Other supported payment gateways include 2Checkout, PayPal Website Payments Pro, PayPal Express, and Stripe Checkout.
Works with Easy Digital Downloads – If you are running Easy Digital Downloads to sell digital products, then Restrict Content Pro is the perfect companion for that.
Excellent Support – There is extensive free documentation available for all users. You also get professional support by email with amazingly fast response times.
Cons of Using Restrict Content Pro
Fewer Integrations – It has fewer integrations with third party services such as email service providers than some other plugins on this list.
Pricing: $99 with 12 addons and single site license, $149 for 5 sites, and $249 for all addons and unlimited sites. There is also a $499 lifetime plan.
5. S2Member: S2Member is a popular free WordPress membership plugin with pro version available as well. It has been around for quite a while and has a devoted userbase.
Pros of Using S2Member WordPress Membership Plugin
Free Base Plugin – The s2Member base plugin is free. Anyone can download and give it a try. It is limited in terms of features and support but gives you a good starting point.
Content Dripping – S2Member Pro comes with content drip feature.
Payment Gateways – The free version supports PayPal. Pro version of the plugin supports Stripe and Authorize.net as well.
Integrations – Works with MailChimp, bbPress and BuddyPress.
Documentation & Support – S2Member has an extensive knowledgebase available to all. Pro users also get email-based support.
Cons of Using S2Member WordPress Membership Plugin
Not very user-friendly – We found s2Member to be a little more difficult to use than other membership plugins.
Free Version Limitations – Free version only supports PayPal, limits to only 4 membership levels, and does not have drip content feature.
Pricing: The base plugin is free, then Pro version for a single site license costs $89 USD. For unlimited sites pro version costs $189 USD.
Besides if you do have any questions give me a call: https://clarity.fm/joy-brotonath