Also, keep your neighbors happy to avoid any unnecessary complaints or reports to the County.

And many times unnecessary.

It is tempting to do your direct mail in house, and in some cases is the right way to go, however, if you do not have the knowledge and/or skills to accomplish your goal in a timely manor, it may end up costing you more and cause unnecessary frustration.

Minimize unnecessary landscaping - Too many bushes, shrubs, and specialty plants are unlikely to be fully maintained. 

Although it doesn't integrate with AppFolio, it can provide a TON of value to organizing daily operations plus it's a super easy software to learn and use.Here was my core tech stack when we scaled from 500 to 2,000:AppFolio, Asana, LeadSimple, Tenant Turner (leasing), Property Meld (maintenance)With 250 doors, Tenant Turner and Property Meld may be unnecessary and also, too expensive especially when AppFolio includes leasing and maintenance features.

Am I right for asking the tenant to pay for an unnecessary service call?  

I think anyone saying they're moving fully out of real estate and into something else is unnecessary.

Charged for unnecessary and unapproved work. 

You might be forcing the purchase to get into str's but trying to house hack at the same times plus car hack just sounds like an unnecessary hassle. 

I own 4 properties that were sold without CofC and have heard mixed opinions about going through the actual process, anywhere from the unnecessary items to the difficulty working with inspectors.