They all seem to have their own pet peeves. 

Which happens to be province with laws that are absolutely terrible when it comes to landlording.For example:You cannot collect a security depositYou cannot ask for first and last months rent (although people do, i'm sure)Tenants can pay consistently late by up to 3 weeks and if you cannot prove to the court that their consistent lateness has not cause you financial harm, well too bad for you.You can't charge late feesEviction is almost impossible - even if they completely go against the lease i.e pets, airbnb the property when you forbid it, consistent late payments etc.The province really treats landlord like they are a charity and that people landlord out of the goodness of their hearts, when reality it is a business.So here is my question,Is it a good idea to invest in your first property out of the Country?

Children’s toys will not be left in common areas, or in flower beds.3.TENANT will notify LANDLORD when leaving for an extended amount of time (more than 2 weeks).2.No animals or pets of any kind shall be kept or harbored on the premises without written permission from the LANDLORD.

Can a non-refundable pet fee be used for these damages, or is it supported that the fee is pretty much just for the "luxury" of having a pet on-site? 

The lease, due to expire on June 30, 2016, indicates no pets, but the tenants have a dog.  

The unit is in a very bad part of town, and was being poorly managed, including having tenants that were not paying their rents, had unauthorized pets, had done damage to the property, the place was creepy crawly with bugs, etc., etc. 

., tell us a well-maintained property with a fenced yard for pets is hard to find.

I am wondering if the pet is a concern?

He would pay a security deposit and pet deposit, but receive a sizeable discount off rent as long as he shows improvement and receipts until the renovations are complete.

(Just make sure children and pets can't get to the areas you apply the boric acid.