Build CRUD operations for a WebAPI using EntityFramework (20 queries)

I am building a Contact management Web App with ASP.NET Core, EntityFramework Core, and AngularJS. Front-end is already done, I have written the Models, migrated and populated the Data Base with dummy data. The data structure (tables in the data base) is like: - Organizations: Each Company/Organization contains one to any number of contacts and tags - Contacts: each contact belongs to an organization or be on its own. each contact contains one to any number of phones, addresses, bankdata and tags - phones: Zero to any number of phones belonging to a contact. - banks data: Zero to any number of bankdata belonging to a contact. - addresses: Zero to any number of addresses belonging to a contact. - tags: Similar to tags in a blog. Each belong to an Organization, to a contact or [login to view URL] sensitive, meaning that: company = COMPANY Contacts could add in the front-end as many phones, addresses, banks data and tags as they want. The Database should be able to accept those new items. Just one will be marked as main (main phone, main address, main bankdata) The project consist in writing these 20 queries in the repository 1- CRUD functionalities: CREATE 1.1 - createOrganization: as per Organization model 1.2 - createContact: as per Contact model 1.3 - createTag: if it does not exist added to its table and linked to a contact or a company READ 1.3 - getAllOrganizations: Return a list of all companies + total number of organizations + number of contacts of each organization. 1.4 - getAllContacts: Return a list all the contacts. Each contact with its data + the organization it belongs to + main phone (phone table) + main address (address table) 1.5 - getOrganizationbyID: Return the data of an Organization + all the contacts belonging to it. Each contact with data + its main phone (phone table) + its main address (address table) 1.6 - getContactbyId: Return the data of a Contact + the data of the organization it belongs to + collection of phones, addresses and bankdata UPDATE 1.7 - updateOrganization: edit one, some or all properties and save in DB 1.8 - updateContact: edit one, some or all properies and save in DB. Edition could be also editing or adding new phones, addresses or bank data to a contact. 1.9 - updateTag: link or unlink a tag to a contact or company DELETE 1.10 - trashOrganization: set a value of true to a property "hide" 1.11 - unTrashOrganization: set a value of false to a property "hide" 1.12 - deleteorganization: if hide == true, remove organization from Database. Contacts belonging to a deleted organization won't be deleted. 1.13 - trasContact: set a value of true to a property "hide" 1.15 - unTrashContact: set a value of false to a property "hide" 1.16 - deleteContact: if hide == true, contact will be removed from Database along with its phones, bankdata and addreses 1.17 - deleteTag: unlink the tag from contacts and organizations it was related to and remove it from the database. SAVE IMAGE METHODS 1.18 - uploadImage: Upload an image (logo) to (public/images) + adding the link to the image in the data base. 1.19 - editImage: overwrite the previous image for a new one, link in database remain the same 1.20 - deleteImage: delete the image from the images directory, remove the address in the database. data should be returned as object or array that allow to show results with AngularJS in the front-end like, for example: {{ [login to view URL] }} I will be delivering all needed files, plus screenshots of the front-end. Project is running late, so I will need somebody engaged to finish, deliver and test it in a short term. 20 queries should not get more than two days. Project is part of a bigger project, other phases coming