Although similar in name to a television producer, Altman was not affiliated with the Netflix documentary Pandemic as claimed in some outlets.

[5] As often mentioned by Altman on Million Dollar Listing episodes and elsewhere, he was a kicker for a brief period on the 1998 Syracuse Orangemen football team.

[8] In 2010, he sold the former home of Norm Zada, who formerly published the magazine, Perfect 10, for $16,500,000, the sixth largest sale in Los Angeles county.

[11] Altman has been featured as a keynote celebrity speaker and host at engagements such as The Luxe Event in Seattle,[12] Century 21 Allstars Sales Rally,[13] 65th Annual Installation Luncheon for Downey Association of Realtors,[14] Renter's Warehouse Event[15] and hosted Terra Bella Presents "The American Dream".

[16] As of 2021[update], Altman co-stars with Josh Flagg and Tracy Tutor, and formerly with Madison Hildebrand, on the reality television show Million Dollar Listing Los Angeles.

The show follows three young real estate agents in Los Angeles as they sell high-end homes.

Altman wrote the book It's Your Move: My Million Dollar Method for Taking Risks with Confidence and Succeeding at Work and Life.