Can i have my own URL instead of jotform?

I would like to remove reference to jotform when i sell to my client.

You may add custom domains on the form URL, but that feature is available on our JotForm Enterprise plan: https://www.jotform.com/help/144-how-to-use-custom-domains-with-jotform-enterprise

Otherwise, you can embed the JotForm on any webpage and share the webpage with your clients: https://www.jotform.com/help/34-embedding-a-form-to-a-web-page