@Kuss2000 @smah
The embassy will call you or email you for the interview. You will be given the interview letter (by email or pickup) which consists of interview date / time and documents needed.
Documents needed are:
Birth certificate / marriage certificate
Passports
Police report (maybe)
Photos
Medical report
I765 work authorization form (for all) - download or get from embassy
G325 fingerprints form (form all) - download or get from embassy
Take the interview letter to a doctor designated by embassy to get all medical certifications. You family might need to put injections if they are not up to date. You need to pay for doctor.
No embassy fee.
Interview only about proving relationship to the primary asylee in USA. Take photos or any proof of relationship., money transfer etc.
After interview, Status which showed ready earlier could change to administrative processing and then visa issued. A call or email from embassy to come collect the passport.
Maybe slight changes from country to country from the above order. Hope this helps people.