My friends and I entered a year-long lease agreement where we each paid $600 per month to stay in an apartment. The original contract we signed stated we were to move out on May 26. However, as that date approached, we realized it would be significantly easier if we could move out on the 31st.
Because of this, we asked the landlord if we could stay the extra five days. He said yes and didn't mention any additional cost.
A few weeks after we moved out, the landlord sent us a bill for the five extra days we stayed, calculated by taking the monthly fee and multiplying it by 5/31. We had thought we would be able to stay the extra five days for free.
Is this allowed? Was he required to tell us that we would have to pay more money if we stayed the five extra days? Or should we have seen this coming?
We live in the US.