I would love a citation to support your claims
https://www.latimes.com/projects/la-pol-ca-gavin-newsom-san-...
That said your link does not prove your claim, the fact that Newsom is supported by liberal elite is not news, and only 1 of the families in the story seemingly have connection to being landloards
The other were a oil company, a retailer, and 2 owners of hotels, of which all of them seem to be old money with seemingly no direct connection to current San Fran real estate market.