Or verified everything with a realtor or even ordering an appraisal 

He claims they are verifiable online and that I should be comfortable doing business over the phone and internet.

In a 506(b) deal you are allowed to bring in up to 35 sophisticated investors that don't meet the accredited standard, and almost as many as you want accredited investors.  506(c) you can market offering, and need to take reasonable steps to verify they are indeed accredited.Reg A(+) you can market and raise from non-accredited, but more regulatory filings.I think there are a lot more accredited investors than you think.  

Ok I will check those websites out, Thank you.There's a variety of ways to get a deal in front of you (I'm mostly a flipper), but basically if it looks promising, I run custom comps queries and check the current & past $/sf of renovated/distressed product in that city or zipcode.Here's a chart on 90066 I generated from my tool under Market Stats > Sales Data > Specific Zip Code:- My above chart (more available) shows the Avg Renovated $/sf (High) over time in this Zip Code, something completely different than charts/providers based on Averages/Medians only, like every other platform (RedFin Below, https://www.redfin.com/news/data-center/):- Can't select smaller locations such as City or Zipcode for their $/sf data, so it's useless helping me underwrite/verify a deal.- Can set Zip Code for Median Sale Price data, but again it's the median/avg so it's useless helping me underwrite/verify a deal.Then if that looks decent, I'll run Sales Comps, and get a quick summary of some key metrics based on those comps.

What can he do to verify the authenticity of paystubs?

I would suggest that before any installation, but specifically roofing, that could affect your insurance that you get in contact with them to verify the continuation of coverage with the EverSeal System. 

I called him up to verify he still hasn’t signed with the realtor yet but insisted I talk to the realtor.

I presume current and previous addresses are on your application, which you could then verify their claim.

It entails verifying leases, contracts, and financial records in order to acquire a comprehensive picture of the property's financial health.

Checked with a CPA, it was odd because the loan officers / mortgage lenders didn't know I could do this until a CPA verified, then all of a sudden, they said oh yes you can do it..