The house is notorious in the community for being a hub of drug activity; dealing & using.

[Biggerpockets] is notorious for the no and no money down niche, but you really need to have a good financial runway prior to investing otherwise you will lose your bottom when it goes sideways.Read all the usual books.

He just got out of prison after 5 years for felony drug conviction.

There are a lot of great commercials from companies who are notoriously bad at paying claims. 

The area is notorious for not having kept great records on all the old properties.

I once went tracking for 30 days and managed not to get them until the last night...I was worried for weeks as they are notoriously difficult to get rid of.  

I trained Iraqi police to go into the worst parts of Iraq, I also inspected their prisons.

Lenders are notorious in taking forever to make up their mind and then when they do, they frequently change it.

Hi Surjeet,I'm based in Auckland - and have found the only way to get even close to the numbers people talk about here is to look outside of the main city centres.So maybe if you're in Wellington check out Upper Hutt or Palmerston North (Though Palmy is notorious for slow capital growth).Its almost impossible to find any +ve cashflow in the main cities...  

Turn key companies are notorious for skimping on remodeling.