Pet urine will seep thru the cracks in the flooring, and saturate the under layment.Ceramic tile, the grout gets soaked the urine seeps thru and saturates the under layment.Concrete the urine saturates into the cement and it's terrible.You will never win and damages may not appear for a period of time.   

Tiny, one sits on the windowsill.

It has a great layout and outdoor space, but it is small is square footage and has a tiny bedroom.

I'm a rather tiny fish in comparison ;P 

What are strategies to make sure you don't buy a place that has a cracked foundation, mold, poisonous spiders (we lived through that one!)

Moving a mobile home is expensive, that is one reason the tiny homes are interesting, probably pull one with a pickup.

So "early" would require diving as deep as finding little tiny niche micromarkets that many people haven't discovered. 

You're correct that I make little tiny commissions when I help my fix & flip buyers to acquire a cheap foreclosure - but I make a much better commission when we put the now-rehabbed house back on the market.Taking that strategy has put me in a position to be a source of expertise to my clients and to do more volume, both of which are helping me to build my business - not to mention the referrals I get.So it's not always about the fast buck.  

Use mesh tape with a setting drywall mud to fix any cracks or areas where the paper of the sheetrock has been compromised then coat the whole wall with regular all-purpose or topping compound. 

Its a tiny studio with a storage room that is raw but could potentially become a legit bedroom.