Essential Real Estate plugin includes the Google reCAPTCHA that you can enable/disable in each submission form: Login, Register, Reset Password, Contact Agent, Contact Agency.

Google reCaptcha in Contact Agent form

Google Captcha panel has all options where you will be able to enable/disable Google Captcha and setup google captcha information for submission forms. From the WP dashboard, go to Essential Real Estate –> Real Estate Options –> Google Captcha

Attribute	Description
Enable Google Captcha	Enable/disable Google Captcha for submission forms
Site Key	Insert your site key. We strongly encourage you to get Google Captcha Key and post the code in Theme Options. You can get it from here.
Secret Key	Insert your Secret Key of Google Captcha