Change the air filters, make sure sprinklers are set and watering, landscaping done, check on cracks and leaks, visually inspect roof, also checking for pets, and how many people living there. 

Consider all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

Also PM would do a checklist during that photo visit to try to catch extra people, unregistered pets, leaks, damage, maybe bad water heaters/HVAC units, storm damage, so that's being proactive.I think these days too many PMs are in it to try to figure out how they can milk the heck out of stupid owners vs helping them build a portfolio and be successful owners.Being proactive on preventative maintenance, being quick on delinquencies, providing property values and options is helpful. 

Where I am going with this is someone may trade a W2 wage slave job for a job of owning rental units to house people and their pets.

It should also show any security deposit collected, pet fees, cleaning feesetc.3.

I accept pets up to 10lbs.

Consider all the things that could go wrong and see if the lease addresses them: unauthorized pets or tenants, early termination, security deposit, lease violations, late rent, eviction, lawn maintenance, parking, etc.5.

They're fine paying an extra deposit and extra pet fee.

People sign leases stating that they agree to no pet policies all the time, yet, they still bring them in.

It also gives us a chance to see whether they have any pets that weren't disclosed in the lease - pretty common actually.