It assumes the property is Class A - which not a lot of investors are acquiring these days.Here's some copy & paste info about property classes:_____________________________________________________________________________Recommend 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 property in Class D area to Class A standards, what quality of tenant will you get?

If long-term rentals don’t cash flow, short-term or mid-term rentals (Airbnb, traveling nurses, corporate stays) might work better.

I don't know about you but I am constantly on the hunt for consistency, consistency of income, of deals, of productivity, in my relationships...so that's my focus in all things not just real estate.So my vision to your question is a a state of total consistency of income and deals.I'm focused on the basics, which to drive me is even more specifically "making offers."  

More on DSCR loans: DSCR loans won't use your income to underwrite the loan. 

I agree with finding quality comparable properties and basing your income off these.If there aren't any, why is that?

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 property in Class D area to Class A standards, what quality of tenant will you get?

@Hiyun Park only experienced investors can DIY everything in Class C Midwest areas like Detroit, Cleveland, St Louis, etc.Hopefully the info below will help you:-----------------------------------------------------------------------------------------Recommend 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 property in Class D area to Class A standards, what quality of tenant will you get?

Diversification into multifamily also lowers risk compared to a single rental, as vacancies won’t affect your income as drastically.3.

You’re going to deduct the rental mortgage interest against your rental income and your personal mortgage interest (if allowed and more than standard deduction) against your regular income.

inconsistent or less idea income sources?