Every bit of text within Property Hive is ran through the __() function where possible and, as a result, is translatable.
Using the Text Substitution feature of the Template Assistant add on you can rename any text/labels. Under 'Property Hive > Settings > Template Assistant > Text Substitution' you can enter on the left the text you wish to replace, and on the right what you wish to replace it with:
Once a replacement has been entered this will take effect throughout the backend and frontend of your website:
You can enter as many text substitutions as you require.