Inside house on wall, if I use the cement board, do I still need to use metal lathe to build my stone wall? If I decide to use Liquid Nails for my bonding agent is that a problem? Thanks)

If you are using synthetic stone, use paver and retaining wall adhesive. You can apply directly to the cement board but make sure the board is tightly fixed to the wall first. Messy on the hands but works great. We use it all the time for loose stone repair. Be careful if using real stone, don't overload the floor.