She prob will end up with a council place.
I ended up in a similar situation, although not kicked out of in laws place was very scared of fil's reaction to the pregnancy(previous mental health issues including being sectioned and spending a reasonable time in a semi secure psych unit) i had noone to turn to(corporate parents) and it was the only thing we could do. As a result I spent 8 months of the pregnancy in hostels-the first one not bad, the second one(stayed in for about 6 months) was horrific, 5 floors up, door had been broken in several times, walls were black with dirt, live wires hung out of the wall, there was mould in the fridge etc etc you wouldnt even had let your pet live there, it really was that bad.Several times i discovered food had been lifted out my fridge(which meant someone had broken in to my room) and I had this women in the next room junkie friends knocking at my door at ridiculus times at night. to make matters worse i had to give up my job with nhs as i couldnt get to work becuase of how far away in a hostel theyd placed me. this meant i couldn't claim benefits, was put on hardship payments and was initially granted a emergency grant of £28!!! which ended up having to last me 6 1/2 weeks!!!!! I was eventually moved to a local family hostel just before the birth which was a amazing place. Just before the birth we were offered a flat which we took without hesitation without even seeing it.
I just want to show sometimes there is no other option, we tried renting privately before all this and couldnt receive HB or rent help or anything, even though we were both doing apprenticeships and "earning" very little. eg we tried to do the right thing but without any help we ended up in debt with basic bills and struggled to keep our heads above water.
I hate to think that ive skrewed the system, but in a way i guess we did. Now we are surving well, up together with all bills, dp working, myself doing a degree. For now i intend to stay put, but once we have anough money to move we will. at which point i intend to swap my place with someone in a horredous situ(eg inner city london in block of flats, unlikely anyone would want to swap with) then once swap complete i intend to give up that place in the knowledge that ive helped someone out of an impossible situation.
As for the girl, i think her attitude stinks, she needs to get off her arse and make an effort to support her family.