Isselin’s career started at the same time that influencer marketing was becoming popular, he said. “The partners who were bringing in the business had these clients that started to do influencer campaigns but they had no idea how social media was working,” he said. “I had known some influencers at the time, so I took it upon myself to own that and show I could be an expert in that.”
Isselin soon became the self-described “go-to influencer marketing guy,” which opened other doors. He now advises emerging and global brands on various projects, including large-scale influencer campaigns and A-List celebrity deals, and counsels top agencies including Ryan Reynolds’ Maximum Effort and IPG’s The Martin Agency.
In 2022, Isselin helped negotiate the $3 billion SAG-AFTRA Commercials Contract, revised to reflect new technologies, as part of the Joint Policy Committee, which was managed by the Association of National Advertisers and the 4A’s to represent marketers and agencies.
Isselin’s expertise has expanded into new technologies, such as advising brands and A-list celebrities on NFT drops.
He’s also provided counsel for several Big Game commercials; the event is the “Super Bowl for advertising attorneys as well,” he said. “There have been times where we’ve started six or seven months out and we are still going through the commercial every two seconds—pausing to figure out, ‘Is there a disclaimer that we need to have there?’ ‘Are we showing the product in the right way?’—up to the week right before the Super Bowl.”
Internally, Isselin is part of Reed Smith’s LGBTQ+ inclusion group and he advocates for the recruitment and promotion of other LGBTQ+ lawyers.