It appears "sot nan" can be used as "from" like "Limye eklate sot nan syèl la." Can I say "M anbake sot nan mache a," or "M resevwa sa sot nan men Jan." Can I use this without "nan?"

1. Limyè eklate sot nan syèl la.
2. M anbake sot nan mache.
3. M resevwa sa sot nan men Jan.

These three sentences are absolutely correct the way you have them.  I wouldn't change a thing.
The preposition nan is necessary in all three.  Although #3 can also be correct without sot.

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