When can I expect fruit on my avocado tree?
My guess is that this tree has been grown from seed. Even if it was from a 'Haas' fruit, there will be considerable variability in what the fruit from this tree will look and taste like. The largest disadvantage in growing avocados from seed is a long period of juvenility. It may take 10 to 15 years for this tree to bear fruit. Here is the link to a fact sheet you may find useful: Avocados.