Most buyers understand, and would rather have a good wholesaler who's bringing them lots of deals, instead of saving a few grand on one property and getting X'd off your list.I don't think i missed any of your questions, and of course these answers are based on my experience here in CA.All the best!

So one of my tenants complained that the ceiling fan has a mild "hum" noise. 

I should add that there was nothing grand about our 1904 house and I was a free lunch program at school and latch key kid, so when I made those remarks about my friends house in the "rich" part of town, I was genuinely puzzled why such a fancy new house would feel so insubstantial.

They meet the first Wed of each month at the Signature Grand in Davie.

She fought me on return of whatever security deposit balance she paid into, even though she caused couple of grand of damage to the house after only living there for 4 months.

Hey @John Jackson ... people move.People also separate, divorce, etc. and grand plans change mid-life. 

The best is when they move in and immediately begin making maintenance demands for things they broke themselves, or because some man they lied about not being on the lease is living there and broke it, or one of their endless supply of children broke it  and it's like you still owe like a grand from your deposit maybe don't take such a tone when you fuss over maintenance issues you created in the first place - but God forbid you withhold whatever pithy deposit they did manage to cough up for damages because they go full throttle Jerry Springer guest in 2.2 seconds. 

Have you ever had a tenant for 20 years, that has an old parent or grand parent that visits, be knocked over by an unruly unleashed dog, and then sue the landlord?

If the tenant’s children or grand children want to provide financial assistance is up to them but I personally feel that parents raise their children the best they can.  

Don't try to hit a home run or grand slam.