bump

If you are closing in the door to bedroom #2 simply move the vanity down that wall towards the hall which will make space for your toilet next to the tub. You will need a space at least 36 inches wide between the tub and vanity in order to put your toilet. You can leave the door to the hall or close it in, it is up to you.

I would definitely reconfigure that bathroom. Given the generous proportions of the bedrooms you surely have the space to make that bathroom larger and more functional. A couple of things I would suggest:

1. Eliminate the direct access from BR#2. Since #3 is your daughter's room you probably want her to have direct access, and you want hall access and some sort of access from #3 without having to walk through her room. Doing this gets you the wall next to the vanity to better utilize.

2. Move the BR#3 closet from where it is to the wall adjacent to the entry door against the hall. Then steal a 12-24" from BR#3 and give it to the bathroom.

3. Move the vanity out to where the door to BR#2 is; that wall is long enough to get a double vanity in if you so desire. At the very least an oversized vanity with one sink.

4. Move the toilet to the space between the vanity and the tub.

5. Now you have room for some sort of closet/storage opposite the toilet and vanity. Maybe a decorative table or other low furniture piece? It never ceases to amaze me how much space toiletries and bathroom items can occupy. Also, if you stack the toilet and vanity on the same side of the bathroom then flip the tub nozzle to the other side so you can minimize the water and sewer lines having to go every which way.

I just can't stand multiple entrances to the bathroom, but that's me. Given that, I'd just gave a hall entry. Or if your budget can take it, a bathroom for each room, one with shower and one with tub?

It sounds like you're happy to do with just one door, right? If so, then I wouldn't do the rearrangements described above -- just moving a primary waste line is a Big Deal in terms of cost and hassle. Just turn the toilet 90 degrees in its same approximate spot. That will put it behind the door when she's going in, which is nicer aesthetically, and there's no need to enclose a toilet in a single-user bath. Then the space where the door to the second bedroom was could be used for some additional storage, like for linens, or for a longer vanity.

You could move the 3rd bedroom closet over to the left corner and relocate the bathroom door closer to the tub. You might be able to get a pocket door.