What I love about ADU is if it's separate there is more privacy and less noise transfer.

I have called the police on him for noise ordinance at 3am and called the police on the trespassers.

Whether it’s TV’s a whole bunch of magazines, board games, decks of cards, Frommer's books about the area, whatever, have something for your guests to do while they’re stuck indoors on a rainy day. 6 - Rules about NOISE.

As soon as the plumber left, the tenant said that he needs a plumber to come over because he is hearing a noise from the upstairs shower. i said why didn't you let me know this while the plumber was there and he said he forgot.

Your PM fees will also be less per unit for a multi unit vs single family.Tenants in multi unit buildings share walls so there is always the potential for noise complaints and neighbors that simply can't get along with each other.If you run into financial difficulties, it is much easier to sell off one or two SFRs than it is to sell one big multi unit.Traditional lending is much easier right now for SFRs vs multi units.  

another maybe odd thing i worry about is it's a bit in the country, with 4 doors right next to each other i worry the tenants could fight, drama, drug deals, noise complaints, i have no idea but it just seems a bit strange. the layout just seems very conducive to drama, 4 door out front literally spaced ten ft apart with nothing else directly around and one big parking lot out front.another concern i have is, i understand there are laws limiting how many people can be in apt. these being 1 bed 1 bath, thats room for what 1 couple, and one child at most?

Such use’s vehicle traffic and noise levels are compatible with the existinguses in the subdivision, neighborhood, or area.6.

Why don’t you make more of a noise to Bigger Pockets to pull down Pace’s book deal?

It will absorb the noise better and it results in longer life on the carpet. 

The bottom tenant's noises and smells (eg cooking) come up to top floor.