I would be cautious and look at both the assessment history as well as the building age to determine what I might expect. 

In this age of almost unlimited information at our fingertips, we still learn best by actually doing it!

Appreciation averages about 5.5%, principal pay down averages 1/2 the payment throughout the life of the loan (average loan maybe $1000/month) The cashflow greatly increases as the purchase ages as rents go up and the monthly mortgage stays the same.

@Caleb Heimsoth - My rental application asks for all tenant names and ages.

Depends on proximity to the coast, age, fire protection, etc. 

As far as your nephew and his girlfriend goes, i think living in Kaimuki and Makiki are more ideal for mid 20’s age.

However, one of the biggest disservices is to simply buy a whole life policy meant to be paid off until age 100 (a financial planner had me do this for my daughter when she was born and the learning process after that’s isn’t the reason I got intonations the business). 

Here's a guideline we have when we do BPO's for banks:Urban within 1 mile, Suburban 2 miles, Rural 5 milesSq. ft +- 20%age +- 10 years No more than 90 days or need commentsSame style or need commentsI start at one mile and go out further if none available.

As a bit of an oversimplification you can use the age of the property.

Another benefit, besides your tax advantages, is that your LLC will AGE which will also help you to build business lines of credit in the future, under your LLC or Corp. as well.Another Related Tip for You:This may be a bit early for you now, but eventually you will want to separate your personal credit (expenses, purchases, etc.) from your business credit; therefore, putting all your business expenses, etc under your LLC or Corp.