Hi Marne,
We have a Hermanns tortioise, about 11 years old They can only be sold with their papers to prove they have been bred in captivity.
You will need a large vivarium as they grow pretty big. They also spend quite a lot of time in it due to uk climate. A flourescent light, heat lamp and heat pad. We use hemp bedding.
Outside we have a large enclosure with a small shelter in it. My aunt lets hers free range around the garden but they do tend to bury themselves. We also have a pond so we keep him away from that.
He eats a range of leaves spinach, cabbage etc , is very fond of dandelions, strawberries and baby corn. Ous also eats cucumber, lettuce, broccoli. Drak gren leaf is better than iceberg lettuce. I think clover is toxic to tortoises. He has a supplement, Nutrobal, for calcium and also enjoys cuttle fish.
They are quite expensive for the initial outlay. I think we paid in the region of £500 for tortoise plus equipment 7 years ago.
Don't buy a tiny baby beacause it is cheaper though as surivial rates are poor for tortoises under a year or two old.
Good luck. Our tortoise actually belongs to my 19 year old. He has grown a lot since we got him. He seem to enjoy having his head stroked gently and likes beinh hand fed.