Nick, best thing to do is download the visa application form now and you will see what is required. Don't leave it until you get to LOS or you may find that you need certain info/documents.
Birth Certificate may well be enough (check the visa form) perhaps someone could confirm this.I wondered if i had to provide evidence that the baby is mine/british when applying for the Spouse VISA? And if so what evidence that would be? I have only a birth certificate so far which has been translated and certified and shows me as the father.
Yes she will need to mention her son regardless of him coming to the UK or not. There is a section on the form about kids.My girlfriend also has a son from a previous relationship but he won't be coming to the UK as he lives with my girlfriend's mother and father. Do i need to make this known on the application that my gf has a son and if so what info should i provide?