[Fixed]-Django multiple forms on one page with inherited models

Form prefix will solve your issue:

hotel_general_image_form = HotelGeneralImageForm(prefix='general', ...)
hotel_background_image_form = HotelBackgroundImageForm(prefix='background', ...)

This way each form will have its own prefix hence will not interfere with other forms.

More in docs – https://docs.djangoproject.com/en/1.9/ref/forms/api/#django.forms.Form.prefix