TPS has no derivative visa so this will NOT work. Also, anyone “Who Failed to Continuously Maintain Lawful Status Since Entry into United States or Who Continues in, or Accepts, Unauthorized Employment Prior to Filing for Adjustment” is barred from adjusting status unless one applies as an immediate relative or under 245(k) or VAWA based applicant or certain special immigrant. This bar applies to “All entries and time periods spent in the United States (departure and return does not remove the ineligibility).” TPS also doesn’t cure any prior unlawful stay. This all makes sense why he is having issues with EB2 and probably his only option to get a green card is to do consular processing unless he marries a US citizen.