I cut my teeth litigating insurance companies for not paying out big claims after law school, many of those cases were caused by miscommunication and not through intentional wrongdoing.

To be fair, from the outside you can't tell that there is anything wrong. 

First investment property so not too versed on legal costs etc if something does go wrong.

You said above I am analizing this wrong, do you still stand by that or were you confused with my explanation ?

I just keep adding to the evidence of wrongdoing.

I posted pictures of their emails where they admitted wrongdoing and double billing on Yelp and Google, and photos of their shoddy work.

And the Worst probable case - not murphy style everything that can go wrong does but what will probably go wrong. 

That is just wrong. 

If you did nothing wrong do not sweat it.Gita

If the repair company carried out the floor repair in a reasonable fashion, with no negligence or wrongdoing, it’s likely that the fault is neither on them, nor the landlord, but seems to be on the tenant for precariously hanging the item.