It is actually fairly easy if you view the property as a number of separate standard components.

A fellow landlord (Massachusetts) told me if my tenant mows the lawn, I need workmans comp on each tenant.  

So I've been in Memphis for a week and getting bids on various components, HVAC system being one of them.

I have a 8 unit under contract and that's about all I can find that's big enough and still cash flows decently with a value add component.

About the only thing that is cash flowing are off market deals with a value add component. 

The wealth of resources included is extremely impressive: Over 200 lessons and 80+ hours of video lessons in the masterclass component, 10+ live calls per month with specialists in various aspects of STRs (including at least one a month with Rob), a growing community that gives you a built-in network of fellow STR investors/realtors/lenders right off the bat (1.5K+ members of the Facebook group), and lots of perks like downloadable spreadsheets/resources and membership to a group purchasing organization that gives 30-75% discounts on furniture from West Elm, Crate&Barrel, Pottery Barn, Williams Sonoma, among others.

Turnkey/passive is the main component of my strategy and RTR is a perfect fit.

You will need to learn all of these components of a development deal: land acquisition, site selection and sourcing, zoning and entitlements, architectural design management, deal underwriting, financing, construction, leasing, property management, and sale or asset management.

@Charlie MacPherson  Heat pumps usually have electric resistance components in them for temps below 20-30 degrees. 

The second thing is to have the property inspected to identify any problems and identify life expectancy of major components.