Three options for forms:
1. Link that opens a new page (I like this for desktop users)
2. QR code for mobile (tested and is great for mobile friendly; background does not show so don't waste time with design)
3. iFrame - my least favorite (size is set by preference, scrolling in a scrollable window is never my favorite; don't love for mobile)
1: Sheriff's Office Business Registry Questionnaire
2:
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3: