Ability to make other fields mandatory in contact page based on Relationship type

Summary:

We are implementing benefits for mexico and US.There are few customization requirement :

For US : based on relationship Type , fields such as Phone and National id should be mandatory

Say if US employee logs in , and chooses Spouse as contatc type , The phone number and National id should be Mandatory,for other contact type it should be non mandatory or hidden.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

25D

Code Snippet (add any code snippets that support your topic, if applicable):