Azure AD B2C: Custom hooks/ federated identity / passwordless feature questions.

I am planning to use Azure AD B2C for identity and access management for a large scale authentication service.

I am looking for the following specific features:

1. Ability to call a third party REST service as soon as user logs in; before it takes any other action.

2. Ability to call AWS lambda(s) based on certain events generated by b2c IDP. (ex. Call Aws lambda when user enters incorrect password 3 times).

3. Federated identity. (Sync between user's identity in Azure AD b2c and the user data we have stored in other external data sources).

4. Ability to have cross device data sync'ing of application related user data (Something similar to Aws Cognito Data sync )

5. Password less authentication.

Any information about the above features will be helpful.

thanks,