They were upset that it was sold to someone who wanted to open up the floor plan, make changes.  

If they are paying high bills and still not getting a cool home then I can see where they would be upset.

In fact, the amount I am increasing it to is less than what is listed on rentals in the same neighborhood per Craigslist.These tenants pay on time but they are complainers about the smallest of items- which is why I wouldn't be too upset about losing them if they choose to part ways.

In a couple weeks when you clear that check and their damage deposit bounces at their new place that might really upset the apple cart.

The non pet owner tenant has called, upset and complained about the poop situation.

If a couple grand is going to get you all up set or hurt your lifestyle then I personally believe landlording is not something you should be doing at all...

He won't be upset when you fire him.Instead of GV you could instruct a new manager to handle her with preset parameters.

At this point I thought she was trying to get over on me cause she was upset after I explained to her why I would not renew her lease.

By doing rent increases annually, which tenants expect, they are reasonably small and do not result in upset tenants or decisions to move.

However I am upset about the days/time it will take to clean the rental unit.