DH has a teenage daughter from a previous relationship and we then have 2 DC together. We own a house jointly (although on balance I have probably contributed around 65% of the equity / mortgage/ overpayments over the years). I then have a flat from before I met DH and he still owns the former marital home from his first marriage.To my mind in our will each of our halves of our estate should be split between our biological children ie mine is split between my two DC and his half is split 3 ways. When I've mentioned this before to DH he's reluctantly agreed but I can tell he's not happy about it. SDC is unlikely to inherit much from her DM / her maternal family but I don't see that it's my responsibility to make up for that. To add a bit more general context it would be fair to say I have contributed significantly more money into our marriage than DH and I don't see why my DC should miss out later down the line especially as DH has had a hugely negative impact on our finances over the years (which is a whole other thread but leaves me increasingly resentful). I'm just curious as to how others would approach this, thanks.