You can buy a proper legal rental contract here with 2 blank examples where you simply fill in the names and addresses, at most stationery shops. Look for a Papeterie.
Advice? Ask for at least 2 months deposit, put it in a Bank Sperrkonto for this purpose (Also known as Mieterkaution and Mietergarantie) Make an inventory. Make a written handover protocol. Even lawyers have been known to not pay the rental, trust nobody. Add a copy of the house rules to the contract.
Lots of stuff, but it is easy to be disappointed, better to be prepared.
if you sublet while its not your apmt immediately ask/inform landlord as if you dont you can get in serious trouble that could lead to that youll be kicked out! landlord can help on that contract. if its your apmt pay 98 chf to mieterverband.ch and let them help you. its the annual fee but its worth it.
This user would like to thank flow23 for this useful post:
his deposit is lost? only if he does not request a deposit from the subletter. i dunno but id check if a deposit account can be opened up as to cash that back happens on contract based criteria like a normal lease contract. thats what i had as my first flat was a sublet.