IMPORTANT: Even in the best case scenarios relocation can be very dangerous for cats and ineffective. Relocation is stressful for cats and since community cats are not socialized to people they can be unpredictable. Community cats bond to their outdoor homes and will try to go back in some cases cats have died in the process, when people misguidedly believe that their life will be better someplace else.
Relocation should only be considered as a last resort and Alley Cat Allies advises against relocating community cats in most circumstances. You can read more about relocation and what to do instead at alleycat.org/Relocation. It also includes a link to safe relocation protocols if you decide relocation must be used as a last resort.