Add me to the list of recommending Florida National Cemetery at Bushnell. Think of a well-kept park instead of a typical cemetery. It's beautifully maintained and well-designed.
Both my step-father (ex-Navy) and my mom are interred there. The cemetery has "columbariums", above-ground sections designed to hold ashes of those who have been cremated. Of course, there are also many different grave site locations, too.
Any funeral home / crematorium should have and handle all the details of working with Florida National Cemetery. Your friend will need to have her spouse's military records - frequently known as a "DD-214" discharge paper to show proof of his service.
Here's the link to the Florida National Cemetery:
Florida National Cemetery - National Cemetery Administration
Read the "Frequently Asked Questions" link on the left sidebar.
Here's another good link on veteran's burial benefits:
Eligibility For Burial In A VA National Cemetery | Veterans Affairs.