oh btw i think i bugged mom's quest with 10000 money.Did you use the Main Quests Walkthrough v. 1.8:You must be registered to see the links?
Maria's Quest must finish before day 30, if you pass the days you can't continue Maria's and Dad's quests.
cz i saw dad at the afternoon at day3.
but he was never around at night or morning or weekends.