is up to you one la.
all my rental is just 1 month deposit. put 2 month deposit want rent out waited for like 2 months also no take up.
put 1 month deposit already rented 3 rooms out.
so you think la yourself. nego with your tenant.
for me if you picky and dont need the money, then hang on to your 2.5 months. if renter dont want then let go and wait for next one.