If you do have to get internet on your own because they won't install it and don't respond to your letter, keep all your internet receipts as you could likely sue them in small claims court, bringing the lease and your letter as evidence against them.   

It isn't anymore evidence than the tenant's word saying they didn't get it.  

We agree to inform them of adverse fiscal events where their child is in arrears and provide them with evidence of any amounts they are asked to pay.  

It's not, and those dogs are my parents', but just going by my facebook, there's pretty strong evidence that LOOKS like I own a dog. 

Hi I am a first time property owner looking for tenants.I am writing up my own lease / rules and wanted to know how to state no pets is allowed, and it's penalty and consequences.I read a few posts on the forums from experienced property owners, and they said the pets will probably be sneaked in anyway.Do you include a non-refundable deposit clause stating that it is immediately due when a pet is discovered or when it was evident upon moving out? 

Right now there is no evidence of this. 

If they push back for some reason you can present your evidence.

The price of the repair has no bearing on the issue, which is why the LL must be prompt to get the work done.The dispute escalate out of control by unreasonable choices on both sides IMO, and the eviction is evidence of push and shove to the loss of both parties - - loose-loose.

I've read they've even gone so far as to claim that if you keep a storage locker in the state that they consider that evidence that your move was not permanent and you intended to return to the state.  

The neighbor appears to have evidence of some barking and party noise on video to attempt to substantiate his claims.Normally, aggrieved residents could call Animal Control or the Police to deal with noise issues.