I was on my laptop and watching/listening to the show, and I noticed the difference in the locations given for each team.

Andy/Tommy from California
Ethan/Jenna (undisclosed)
Laurence/Zack (Thousand Oaks, CA)
Ernie/Cindy (Chicago, IL)
Justin/Jennifer (Stone Mountain, GA)
Bill/Cathi (Albany, OR)
Liz/Marie (Deerfield, IL)
Jeremy/Sandi (SF Bay Area, CA)
Ron/Bill (Southern California)
Amani/Marcus (Pine Mountain, GA)
Leilani/Lisa (Las Vegas, NV)

Every team is city-specific except Andy/Tommy, Ethan/Jenna, Jeremy/Sandi, and Ron/Bill. I read something where Ethan/Jenna wasn't in the final 3 and Andy/Tommy were sighted somewhere in Europe, so I SPECULATE the other 3 teams are in the final 3?

Time will tell