This could be a variety of different items.

I am studying this space as well since my fund invests in a variety of commercial real estate asset types.

So although things like school ratings, crime rates, sex offender registry’s, etc would often time impact where someone will buy/rent property, sometimes people will overlook those things bc of other factors they consider more important (generally location).I pull sold data through a variety of software to analyze accurate ARV or for estimating appraisals. my method for determining rent comps is pretty basic.

., eviction history) through our local online local law Marshal's office (they are the ones who handle "tack and mail" notices for a variety of civil actions).Our applications state (and the applicant must sign) that what they have provided is truthful. 

I also listen to the webinars through youtube and find them very useful because they cover a variety of REI strategies and discussing the mistakes seasoned investors made can be effective when planning ones REI goals.

But you'll find a variety of every type of investor on the site, and everyone is amazingly helpful.

But you’ll find a variety of every type of investor on the site, and everyone is amazingly helpful.

But you'll find a variety of every type of investor on the site, and everyone is amazingly helpful.

But you'll find a variety of all strategies here on the website.

.- You can check for market volatility using a variety of sources.