Right now everything is getting multiple offers, so putting it on too low isn't very risky as long as you ask for highest & best.  

Aloha Daryl - investing in real estate is definitely a worthwhile venture, especially in Hawaii where the price points can make one deal the equivalent of multiple deals on some mainland markets.I want to give you some friendly and constructive advice.

With that being the case, should I be looking at taking out mortgages to buy multiple multi-family properties? 

Make sure you are putting your ad in multiple sites, newspapers etc.  

I would love to find an apartment so I don't have to find multiple deals.  

I love the idea of acquiring multiple properties with cash refi's and then use the cash flow to snow ball your debt.  

There are multiple forums daily discussing various REI strategies, tips and tricks, creative financing ideas etc, would BP be an "evil guru" if they charged for acceess?

If you are expecting multiple other investors to bid on it, I would bid your best and highest right off the bat.

Are there any discounts if I own multiple properties?""

First, the search feature on BP is your best friend, there is tons of information available, almost any question you can think of has already been answered multiple times.