Charge in security deposit statement for all damages, and unpaid rent with fees for June for Improper Notice, Take Photos' of everything, If you already changed locks put a note on the door saying new keys are with manager and you entered for emergency electrical problem,,, basically power was off, you had to enter to insure smoke alarms were working.check you state tenant laws, but basically your stuck until you get a confirmation of move out.You had the right to secure your property from damages that could have happened due to electricty being discontinued.. 

Holy smokes!

Most of it was ok but there were dark stains in some of the rooms.

Easy Peasy.As the folks from Brookings point out, it’s not that easy in these dark days of financial engineering.

It burned a pot and set off the smoke alarms.

Simple things like how many people, how many animals, does anyone smoke. 

Insinkerator is not working (because of tenant use) And I also find out in 1 room, there are smoking smell (this house is non-smoking house and did mention in the lease agreement) I can't imagine how the house will look like after 1 year contract.What should I do now to prevent any pity in the future?

His apartment is saturated with pot smoke.

I asked a friend who has a rental and also turned an attic into an additional room and never got a permit for it and he said I should not worry about it because the certificate of occupency person just looks for working windows with screens and working smoke detectors etc. 

Not interested in Property Management Software.I'm trying to scale a bit, and rather than store everything in my mind, I'd like to have a cloud based (likely google) sheet that me and one other person can edit.I'm thinking storing notes like smoke detector test dates, inspection dates, issues tenants report to us, etc.I can come up with something: just was wanting to baseline what other people use.