They are waiting for Mama's 10,000 dollars check to come. Walter wants to use the money to invent on liquor store.
Oh poor Bobo and Walter Lee, they shouldn't trust me with the money. Hahaha.
They got in a big fight because Mama's doesn't agree with Walter, she doesn't want to spend money on liquor store. Then Mama went out and bought them a new house. Which made Walter really mad.
Mama only some of the money to buy the house for the family and she'll give the rest of the money for the liquor store and for Benetha to go to medical school.
All the money was stolen by Willy. Walter broke down, he was going to sell the house at Clybourne Park. He was at a point where he didn't care about anything but, money.
Walter was going to sell the house back for money because he thought that was the right thing to do. Then. Mama has Travis stay and watch Walter which made him realized that the right thing to do is to move into the new house because it's better for his family.
So, The Younger design to move into their house at Clybourne Park and start a new life.