Family visa

Hi i have got few quitions to ask.
1. once i get the family visa is it compulsory medical for my wife and kid?
2.how much will it cost to apply family visa here?
3.i have all the documents with me now like my marriage,all of us birth certificates and my higher level certificate which is translated and attested and all.now what is the step here?where and where i  will have to go?

look here

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FAQs >Resident FAQs

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www.mofa.gov.sa this is the official web site u can get all the answers

Please can you tell me the validity of residence visa before endorsement

45 days

Hello..im planning to bring my mother here...for a visit visa...do I have to change my iqama first, before I will be able to visit by my mother because in my iqama I'm only in general nurse category but  in fact I'm a lecturer in the university...