I have been with my partner for five years and we are expecting our first child in the next few weeks. We have a difficult relationship with his father and step mum, my partner is their only child. I see them about twice a year despite them living about 15 minutes drive away but my partner meets up with his dad a couple of times a year to watch the football at the pub. We have visited their house twice since they moved in four years ago. The relationship had a frosty start as just before my partner and I met they refused to let him stay overnight as they 'prefer it just the two of them', something oft repeated throughout the time I have known them and for my partner since his dad met his step mum. Whenever we approach them for any financial support for instance for our wedding, in the sub 500 pounds region, we are met with excuses for why they can't help. This is in contrast to the multiple holidays they take a year and the expensive items they buy for themselves (bikes and cameras well over 1000 pounds). They are low effort themselves, for instance not sending me a birthday card, but when challenged say that I should make more of an effort with his dad. My partner has tried a couple of times to talk to them about how to make the relationship a more parental one but nothing has changed. His step mum just refuses to see us for a few months then they both act as if nothing has happened. I am unsure how to navigate having a child and my child's relationship with them. In contrast to how they are with my partner and I, his dad and step mum have been very enthusiastic about becoming grandparents, although I don't know how this would play out in reality. We are lucky that we have a lot of support from my parents and from my partner's mum but I just feel uncomfortable with exposing our child to what has historically been a very low contact relationship.