As a STR focused broker I'm signed up for their emails and newsletters and receive daily emails of their 'lucrative' properties with projections and ROI of newly listed properties in desirable STR areas.

FWIW, I see a lot of posts here from people advocating strategies I flat-out see fail on a daily basis. 

We intake county record updates daily.

This requires careful structuring (typically using tenancy-in-common arrangements) to maintain compliance while leveraging limited retirement funds.For those concerned about UBIT (Unrelated Business Income Tax) from leverage within IRAs, some investors have successfully used options strategies, securing rights to purchase properties using minimal SDIRA funds, then selling those options for profit or exercising them when additional funds become available.The compliance requirements remain stringent (prohibited transactions can invalidate the entire IRA), but the growth potential justifies the administrative complexity for many investors.Who's actively using a self-directed IRA for real estate?

I do not know how to explain the discrepancy as I consider each source reputable.I look at RE prices in the San Diego market daily.  

Sean,I've been analyzing deals off the MLS daily for a few weeks now to wrap my head around the numbers.

It's much harder when people have ongoing monthly subscriptions to every TV service, a monthly expensive coffee habit, a big car payment, and use door dash on a daily basis.

Some of the properties I sell as Turnkeys to out of state (California) investors who sometimes use CA LLCs while other properties enter my personal inventory until there is sufficient equity to do a refinance and pull the equity out.Occasionally a Tenant Buyer exercises their Option and I use the proceeds to purchase another couple of properties or travel depending on my mood.

How do they ensure the data is updated daily or weekly if they get from county websites and the bulk data they get from these county/notices and court websites is it like a web scraper?

Quote from @Ian Kiefer: Quote from @Kieron Osullivan: Quote from @Ian Kiefer: As others mentioned already the best strategy to go for now wouldn't be the same in couple months due to the changes the market is facing on daily basis, and the changes you would go through yourself.