Hi Ash,
Sorry to hear that uou are going through this bad time at such a young age
All i can say to you is that yes most Landlords are like that unfortunately, but if they have signed a contract or a lease the landlord by law has to give them at least a months notice to move.
The only thing your boyfriend will want right now is for you to b e there for him
It will mean the world to him if you could just sit and listen to everything he tells you.
I am sure this will all be sorted out soon, as things always seem life ending at the time its happening, in a few months you will be looking back and laughing about it, trust me ive been there
If they cannot afford to move tell them to go to the citizens advice bureau they are a fantastic helpful service and they will make all the necessary legal phone calls etc for free for you, and if needed find temporary shelter for your b/f and his family,
Good luck hun let me know how it goes
All the best Kel xx