How did you run in any Problems at the police station? Corrupt the Cop, corrupt the chief, corrupt the jail, corrupt the chief, corrupt the newbies, corrupt the cop, corrupt the chief, corrupt the subway, corrupt the newbies and then the police station is yours. then the train newbies option from your cop will say "only enslaving the cop is left" or anythin like that, dont remember the whole phrase. after enslaving her corrupt the chief until the whole station get its collars. then the moms event chain will start. talk to the newbies (i dont remember if directly or by train newbies option from your copslave, just try both) and trap the fathers, the mothers will come to jail. after that ask the newbies about their mothers and they will take you to their home, then you can take care of them until you get them pregnant...thats all so far...
this game is to linear to run into any problems, just dont enslave to fast and remember the few things that are bound to special times and specific weekdays like the doc or dates in locations that are closed on weekends, the subway morning, evening dates or the student gathering at monday mornings, mostly anything else just waits until you go there and have the needed potion...just grind your potions and run from person to person until you run into "thats all for now, wait for updates" messages...the only thing you can do wrong is enslaving people before their stories/events are done. in this case you need either an old save or the better experience mod to free them, do the missing stuff and reenslave them (its also very useful to change time and day in your current location, so no running around an forgetting it)