The minimum rate of return you should aim for in a house flipping venture depends on various factors, including the local market conditions, your level of experience, and the specific risks associated with the property.

I think it's a good way to compare single family to multifamily investments from a high level.

@Chris Seveney I agree with your #3 for a few reasons1) housing expense as a % of income has been rising to well aboe long term levels.

Secondly, depending on the rehab level I would have a contractor come and look at the property with me. 

You'll probably get exhausted with this so you need a PM who serves at the ground level so you can focus on higher value tasks. 

It really comes down to your level of risk, how much you want to spend, how knowledgeable you are with the area, and if you want to be hands on or hire a property manager. 

STRs generate about as much hotel tax revenue as the hotels/resorts so there is support at higher levels:  https://poconosvro.wildapricot.org/Economic-ImpactLocal regulation is rough.  74 municipalities each with their own zoning and STR ordinances plus most of the housing stock is in planned communities, many were built as vacation/resort summer homes.  

We changed the batteries 5 months ago and the battery level is currently at 93%.

There's absolutely not any federal level housing law on this.  

It's always price, amenities, and/or location - assuming a base line level of common sense listing like professional photos, accurate description, etc.