Would like to try to create a full family in that game but not sure how
i mean that i would have at least a parent that would be in the house, the rest would be easy, any lead, will try with importing character in the mean time
You can't really do much with a 'family' in the Mansion, but if you are just role playing it, you can come up with something akin to what you want.
You can make friends with alley attackers. Instead of going straight for the fucking, try talking to them after you beat them once, then visit them regularly to talk and offer money to them enough times until they like you and you can invite them to Lilaya's home.
You can suggest that they DO NOT find a job, then just work on making as many babies with them as you want.
As long as you are not trying to turn a profit with them, you can add 2 or 3 slaves, as maids, and they will pay for the upkeep on something like 10 - 12 guest rooms for kids.
You might want to purchase the offspring map from town hall to make finding your kids easier in the alleyways.