The Adjacent identical 8 unit building sold last month for $1.25 million.

Here are some popular skiptracing platforms and websites that investors often use:TLOxp: This is a service by TransUnion and offers a comprehensive database to find detailed personal records.Spokeo: Useful for basic information and sometimes provides email addresses and phone numbers.Whitepages Pro (now Ekata): Offers identity verification data, including phone numbers, addresses, and more.BeenVerified: This service aggregates information from various sources, giving you phone numbers, email addresses, and other details.PeopleFinders: Similar to BeenVerified, it pulls from various sources and provides detailed reports on individuals.BatchSkipTracing: Designed specifically for real estate professionals.

Here’s my last buy august 2019- $60k purchase, $15k rehab, currently rented for $1450, house next door is identical and sold for $153k earlier this month, but my house is much nicer since it’s a new rehab. 

This may not apply since this is not an owner occupy, but for non-warrantable condos I always work with Key Bank or Compass Bank they have identical programs.

Two houses not identical but very similar in almost all aspects, less than a thousand feet apart not accross a major thoroughfare.

He has a 16 unit townhouse complex with 4 identical buildings. 

Yes you can learn a lot about investment real estate from BP, but you don't necessarily learn much about being an agent, and they aren't identical skill sets by any means. 

I did an identical unit at $90k purchase and $178k sale.

Highly unlikely...Here's why.Once you've decided where you want to invest, I believe your very next step is to identity resources that are local and active in that market.

It's a gated community so layouts are identical as well as amenities.