We suggest arriving in Padova one day before the beginning of the spring school, since the first lecture starts on Monday at 9:30 in Legnaro.
A list of options for accommodation in Padova and Legnaro can be found at:  https://www.unipd.it/en/research/international-scholars/housing-and-canteen-facilities-scholars.
Please note that our university guesthouse (ESU - https://www.sassa.org/index.php?option=com_content&view=article&id=25&Itemid=31&lang=en) are normally full in April, but you can try to contact them to ask if there is place available.