I don't know this attorney and don't endorse him, just found this article on the subject: https://www.chugh.com/news/h-1b-visas-and-entrepreneurship-can-h-1b-and-h-4-visa-holders-start-a-business?

I'm not surprised they would not explicitly endorse it.  

I now get monthly emails with updates to my home's estimated value, along with metrics such as how much rental income the property could generate.Their pricing algorithm is a blackbox to me, so I can't endorse the product.

Greg,, hope your well.. yes BP can be prickly when people basically start and account to endorse a company..

More important than a celebrity endorsement is a referral by “students” who’ve been through the workshop and can vouch for its usefulness.2.

Denise,The issue that your client is likely dealing with is that there was a Warranty endorsement on the policy (part of the insurance policy that states that something must be done).  

Ryan during their presentation did they mention whether they have you invest in their fund or if they actually assign the Trust Deed and endorse the Note to the investor? 

Ross talk about how his software is "so revolutionary..." and the analogous endorsements of his "wonder wares," to conclude that this guy is about as "smarmy" as they come...

BP has their paid trainings ( which I personally endorse) etc etc.

Second endorsement for HouseScan.