2 nights ago he slept well until 5 so I thought everything was getting better but last night he woke every 2 hrs so I checked his teeth this morning.
He has a molar coming out!!!
Since he sleeps from 7:15pm-12:00ish I wonder if I should give him med at this time.
You are right

Also, we will transition to 1 nap as well.
Since he resist the morning nap I thought I would give him the morning nap later around 11am.
He would want to have a longer nap this way. Should I leave him to have a longer nap or wake him to give hims longer nap earlier?
If I leave him to have a longer nap at 11am then this might lead to early wake time?
Thanks so much!