1991 Acura Integra alignment and wheel bearing

My tires are leaning inward so the outside edge is being eatin away very badly. But I was told that my ls cant be aligned or adjusted. Can it and if not what might be a course of action for it? Is there a possibility that a wheel bearing that is supposed to be pressed on can be done without a press? Cause I have already payed 3 people to do it and nothing done yet I will if I can!