Hi and thank you for a chance to offer you my services. You are welcome to check my feedbacks to make sure I'm specialized in pdf forms design. However, I should inform you that pdf forms functionality on handhelds is very insecure and depends on the apps users are using to process pdf files.
The best iOS pdf app is PDFExpert from Readdle. Not sure if there's any good ones for Android.
However, please let me know if you would like to get a free sample pdf form based on your file, that you can test out and make a final hiring decision afterwards.
Best regards,
Sergiy.