Wet the siding with a garden hose before removing (and occasionally rewet you debris to keep dust/fibres down).  

I looked through my business operations guidelines and could not find that word.Jacob I would advise against condos or apartments as students will cause neighbour complaints.Student hosing has higher returns but require a much more hands on management style. 

You can also get special window units that cost a little more for casement windows, or use one of the portable type air conditioners with the vent hose(s).

The exterior is hardiplank (you'd need a bomb to start a fire) We have 4" waterlines running throughout the property with sprinklers and fire hose.

Dogs dont need AC at all ,they pant , if they are that hot tell the tenant to take the dog outside and squirt  them down with a hose

Replace a leaky garden hose. 

I had another that simply ran the hose from the clothes washer drain to a hole he made in the floor because it backed up the septic.

However it is always a concern that tenants understand that high volume uses like running hoses for the garden and the baby pool every day are not allowed. 

Give this a go.... blows and home sleepo have a drain king.... its a pressure balloon that attaches to a hose and expands in the pipe to seal it from coming out the back end where you are sitting.Find the distribution box.

They are pretty quiet, and you just vent them out the window with a hose.