Hindley's death

Hindley left no inheritance for his son, the family home had been mortgaged and unpaid.

From the text:

In that manner Hareton, who should now be the first gentleman in the neighbourhood, was reduced to a state of complete dependence on his father's inveterate enemy; and lives in his own house as a servant, deprived of the advantage of wages: quite unable to right himself, because of his friendlessness, and his ignorance that he has been wronged.