Different check-in dates
I'm booking 2 award rooms (my account) for a 1-night stay with the in-laws (a Sheraton in Argentina). They're checking in 1 day prior to me.
Should I book:
A 2-night stay for their room + a 1-night stay for my room (and include one of their names as a second guest)
or
A 1 night stay for the night when I'm not there + a 1 night stay for both rooms?
Will they have any issues at check in? And how many nights' credit should I expect to receive?