Override Ad Submission Form

You can override ad Submission form and do your necessary customization

Copy the following folder or specific files from this folder as you need

Source Folder and Files:

wp-content/plugins/classified-listing-pro/templates/listing-form

Destination Folder and Files:

Copy the folder or specific file to your theme or child theme

wp-content/themes/your-theme/classified-listing/listing-form

Files need to edit

Form: form.php

Information: information.php

Contact part: contact.php

This are several part here you can edit which part you need.