Declaring that I did something unethical, with intent, was an poor assumption. 

By doing so, you'll be able to use accurate assumptions when underwriting deals with strong levels of confidence!

My assumption is laundromat clients tend to be on the lower income range.  

Keep in mind you'll never have all the information and there will always be unknowns and assumptions.

Or where the borrower sells the property to a third party with the assumption of the note - at an increase in interest rate.  

Most Class C/D areas will pencil to positive leverage, if you use generic underwriting assumptions.  

@Mike TikhRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a Class A property in Class D area, what quality of tenant will you get?

If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a Class A property in Class D area, what quality of tenant will you get?

@Loan NguyenRecommend you first figure out the property Class you want to invest in, THEN figure out the corresponding location to invest in.Property Class will typically dictate the Class of tenant you get, which greatly IMPACTS rental income stability and property maintenance/damage by tenants.If you apply Class A assumptions to a Class B or C purchase, your expectations won’t be met and it may be a financial disaster.If you buy/renovate a Class A property in Class D area, what quality of tenant will you get?

It sounds like inventory is pretty fixed in the Maui short term rental market, but I'm not sure if that's a safe working assumption for the long term.