I've been working with this place for one year now, my boss has issues paying us for the past four months so he's been annoying people to quit. He fired me when he learnt I went for an interview. I've not been paid for July and he said he won't pay for August as severance. Is that even legit? Its in his appointment letter.

Temmywon, why did you make it known you were going for an interview? Well, the worst has happened. Just ignore and look for somewhere else because he won't pay you.