Duplex and quads are the best bet because in the case of vacancies with a unit, the other unit will cover expenses.

Now take a similar size house in Rockville that is worth $500k.

Everything is going way over asking price right now and you'll be competing with 20+ other offers.Not to say it can't be done, but your best bet is to learn how to market and find off-market deals.  

Be careful of these gurus.For instance, roof replacement is not $5,000 - depending on the size of the house, it can be $4,000 or $7,000 or $20,000.

Many properties were damaged with softball-sized hail.

@Sabi Const I would want to know the size of the building before I estimated construction costs.

In Ewa, you should be able to get a few more true comps around the same size as your target property without having to use one that's 600 sqft larger. 

Obviously the size of the lot will dictate how many units I could ultimately get in there but this zoning designation is pretty crazy in what it allows for developers to do.

(# of bedrooms, baths, size etc.) • What do you like most about the home?

Going all-cash is the best way, if you can make it happen.Your best bet is to find someone in your market who's already doing what you want to do and try to partner with them.