Buyers can go on zillow, trulia, or any countless other site and know true values and be more educated than the broker.This is what happens when there is market disruption.  

Many tenants are willing to pay extra for convenience, which could give you additional cash flow without a full rent hike.Reassess Your Portfolio→ If one or more properties have become too burdensome with high expenses, it may be worth considering whether selling and reinvesting in a different market or property type makes sense for your overall portfolio.While raising rents is the most straightforward approach, these alternative strategies can help reduce costs and increase revenue without disrupting tenant relations.If you need help assessing the numbers or exploring financing options to lower your monthly expenses, feel free to reach out → I’d be happy to help!

A final settlement statement should be agreed upon to ensure no discrepancies.This process ensures that the transition is efficient, minimizes disruption for tenants, and allows you to take over the management of the units with all the necessary information at hand.I hope this helps, and best of luck with the transition!

It's another to disrupt every weekend day, ever weekend for 3 weekends. 

If the unit is occupied and we need to disrupt the tenant to show it, we require a partial pre-screen.  

It didn't disrupt my business, it didn't cost me any more other than a bit more time which I took from my non-productive time.

The reality is that reducing income to "potentially" save costs does not save costs it only reduces the return on the property.Once you graduate from a couple of doors to tens or hundreds a stricter business approach is necessary to insure maximum return, Vacancies are built into the expenses and the percentage of tenants leaving over a rent increase is very rare as professional landlords quickly learn.Landlords are simply justifying their suplimenting of tenants rent out of a illogical fear that tenants will decide to disrupt their personal lives over having to pay market rent.

Or their kids were completely out of control running through the building and up and down the stairs without the parents controlling them, and I was sure they would be too disruptive to the other tenants.  

OP did not mention this person causing disruptions or complaints from neighbors.

Tenants don't like to have their lives disrupted by maintenance people, so they tend to not report problems.