In that same vein, there's always someone who's more experienced or more knowledgeable than you.

Along the same vein, if you have a decision to make (like taking off or buying a rental) before you pull the trigger you think through all the things that could go wrong and remove those outcomes, then you at a minimum won't fail ( either crash an A/C or sink a bunch of cash into an overpriced d-class turnkey). 

In this vein, however, I would also not recommend people marrying (buying?)

No real estate person anywhere has EVER done anything sleazy and backhanded and slimy to make a shady buck...oh no...buncha angels with little gold halos and milk running through our veins...a warm little pat of butter wouldn't melt in our mouths...

Yes, leverage in a property matters, but like most things one can not hold tunnel vision of a single metric and assume knowledge of the whole, it's a spider-web of factors one needs to step back and take into account the relation of each factor upon the other. 

Spiders.

I consider pest control to be dealing with bugs and spiders in and around the house, not native wildlife.

One of the women said she was sorry to call so late, but could I possibly come over and kill a spider she found in the tub.

Same with geckos, spiders and house centipedes.

On the same vein, not everyone has C-class tenants.