In real terms you would walk away from an investment long before a primary residence and therefore most banks will not allow it for anything less than 10%.

https://www.biggerpockets.com/blog/brrrr-loans-what-are-the-...Short-Term Rental Loans: What Are the Options and How Do DSCR Loans Stack Up?

If your rental rate is below the market anyway, a Tenant might consider this to be win as they would get the lower rate in the beginning and just rise to the level they were looking at everywhere else.Step clauses can be written right into the lease, or created by using 3 month lease terms with an auto-renewal at the step up rental rate price. 

I am a long term hold investor so that would likely be my play.Good luck Sean!

Since you’re considering converting the upper unit into a short-term rental, you may also want to implement strict rules around smoking or strong odors in your house rules to avoid future issues.

I use this type of system in a ten unit that I own because the cost to submeter each one was cost prohibitive I usually don’t include other items like wifi/internet unless it’s a furnished/short term rental. 

Financial Freedom Network I laughed at -- after reading the agreement, no comparable value for that monthly price -- 3 or so years ago, if value has changed now, my time-based disclaimer is as aforementioned -- and Legrand would do well to disconnect FFN from his name, as I believe FFN is now out-sourced, whatever.I empathize with you , Joe and the other responders, but when I read Legrand’s, and most of the other guru’s, contracts prior to trying a teaser product, it clearly stated in the agreement that if customer did not want the upgrade service for which the teaser/free product, free video, whatever, was being given away, then customer must cancel within the stated period of time, which almost always range from 30 to 90 days [60 days is becoming more common, as more folks forget to cancel]So long as terms to cancel are clearly stated prior to contracting, I don’t find it unethical, -- and real estate gurus have merely adapted a teaser or rebate marketing technique used in most every industry -- recently even Chrysler cars [try our minivan for 60 days!

Then there’s city regulations—some places heavily restrict short-term rentals, so you’ve got to check the rules.If you find the right spot and automate stuff (guest communication, cleaning, etc.), it can be profitable.

If you do decide to start flipping homes- as a new investor you can either self finance with all cash, or you can contact a commercial lender like myself and expect terms to be 75-80% of the purchase price with 100% of the rehab financed through a draw.

I read this as someone using a short-term lens to focus on a long-term issue.