Using partners wage as other in-come in Co-Ownership

Hello,


My partner has a great credit history, mine not so much as I've just been in my new job four months. We are applying for co-ownership and looking at houses. Many houses seem to be just outside our price range due to their strict guidelines on housing quality Co-ownership apply. I asked the adviser if I could put put down £250-300 a month from me as an additional in-come. She said yes, but I don't want to get my partner rejected because of this i.e. picking a house at a higher price and it being out of her loan range. Anyone any advice if we should put this down?

Thanks
T&T