No I didn't report the Birth Certificates as lost because I have recently moved out of the family home and into a flat with DBF. . . So it's gotta be around here somewhere but I cant find it ANYWHERE. . . And I need to get his passport sorted ASAP because we are flying down to Glasgow in March so I need to book flights etc (He doesn't have any photo ID, yet still gets served booze anywhere he goes, lucky sod!)
You can still book your flights so long before you get the passports. I booked flights 3 years ago and DD's passport had expired. It was her baby one so I had to get a new photo taken and everything, but I booked flights about 7 months before I got around to sorting the passports. Just in case you are waiting to sort the ID before you book - you don't want to miss a good flight deal if one comes up for your dates.
My sister is no relation to DBF because we are not married so it is fine - As its his passport we are getting not mine. Yes ?
Yes
As for his mums Birth Certificate, We need hers because DBF was born outside the UK so its more proof that his family are born and from the UK.