@Rohit Goel, looks like I relied on Rentometer and Zillow too much. 

However when looking at a street there are a few obvious things like boarded up houses, a lot of graffiti (that is not artistic in nature), needles on the ground, uncared for lawn/walkways, people on porches drinking from brown bags, lots of adults up to nothing during the middle of the day (not working at jobs) etc. 

Trying to figure out how heavily I can rely on it?

How can I be the best mediator and get these people to behave like adults?

Would also have to rely on street parking in front of the house.

I would never want to rely on a seller’s agent’s inspector as you never know what underlying relationship exists between the two/three.

Personally I'd advise against relying on IRR though.

So the great thing is we don’t rely on one industry for our rental pool.

Their aggressive marketing often relies on borderline harassment, and I personally get probably between 5-10 calls per day for various houses in my portfolio.

I also think because of the amount of fouled up rental listing info (at least in my market), they realized they can no longer rely on syndication/IDX for the info.