No pets, or pet rent, landscaping responsibility, utilities, length guests can stay, etc etc. 

Entertain the idea of being pet friendly and also ask any current in house renters if they'd like to extend at a discount.

Top 5 searched amenities include being pet friendly, smart locks, wifi, fully stocked kitchen, hot tub or jacuzzi. 4.)

If they break it, evict.And with ozone generators make sure everyone is out of the building humans/plants/pets if these units are somehow connected or share vents (you mentioned furnace filtering - so I don't know I'd these units are connected or not).

I allow pets which gives me an advantage as many do not. 

AirBnb has such a good insurance policy that I usually don't require a security deposit, unless they have pets.

Beyond that, we don't consider any lease valid without payment of security+first month+any required pet deposit - in fact, this language is in our lease. 

I really don't want any pets, so I will keep looking. 5) I can't afford to do new paint and carpet right now, so I will just lower the credit score requirement to 500. 

People are driving more, wanting to bring kids and pets with them and wanting to cram the family or close friends in - SFU are more attractive and you can charge a higher premium to split amongst the number of beds that it can sleep.

Pets will be a frequent request, so you'll need a policy.