It is not uncommon for unmarried adults to have romantic friends stay the night.

It's not uncommon to have some large financial losses the first year of ownership.

Hard to pin down lender motivation.Back before short sale was a household word and an income stream for agents, it was not uncommon to negotiate discounts with a lender as a successor in interest and as someone with a controlling interest in the property (as opposed to the borrower).As for liability, what liability are you referring to?

@Jewelie BullockI have someone, although it's not uncommon for PM's to charge more on a STR like AirBnB,VRBO, etc.. than the standard 8-10% on a LTR

That is not uncommon. 2.

It is not uncommon for investors to look for STR in the summer when booking will be high and then transition to MTR during the winter to lock in a tenant while the STR market picks back up.

The current way the studs are built is not up to code, so they have to rebuild the entire structure of the kitchen wall This is not uncommon especially when renovating an older home and when budgeting you should also carry a very heavy contingency for unknowns. 

These are typically 'non english-speaking' neighborhood so to speak for political correctness. so parking while already become a problem, but adding ADU in that neighborhood would not become a problem because 'everyone knows each other' everyone has their own unit.But that ADU thing, is bit uncommon in 'english-speaking neighborhood' LOL, so that's where "some" people is complaining about parking space and so on and so on when one home is building ADU.For me, I prefer to have ADU on the hill side, now we have 15 car space and from one neighbor to next neighbor is like quite distant.

Unfortunately I think this is not uncommon with PM companies.#1 Make sure you know who the responsible broker is and talk to them directly.#2   If that doesn't work...Maybe file a BBB complaint or better yet with the regulatory authority for real estate brokerages in VA. 

Unfortunately, the frustration you are presenting is not uncommon from my experience.