Yeru - why are the boys being/been thrown out? I have a 5 y.o w/sever autism - so I understand quirky behavior to say the least!
Perhaps they will be better off w/you. Does the 18 y.o receive services to help transition into workplace/college?
I'm sorry this is happening to you and your wife - it makes no sense.
Mommy - I was kicked out at 16 too, and didnt' do drugs, drink, smoke or nothing - just was df'd. It is hard when you're struggling to finish school & have enough money to make ends meet.