Trip from West Coast around the US

If you are taking your toad, don't worry about public transportation except if you are visiting larger cities (Boston & NYC especially, also Chicago). Rural roads and small towns are a great way to get acquainted with different areas of the country, and there is precious little public trans there. :) Be aware that roads and streets in the East are very much narrower than you might be used to out here. You will probably want to park the MH in a campground in each general area and do day trips from there. B&Bs and hotels are certainly an option, but the B&Bs especially may have limited parking space.

Also be aware that state parks there often don't have hookups, and sites may be much too small for your MH. As already suggested, do some research and figure out where you will want to stay. I do suggest reservations near cities and in popular tourist areas, especially on weekends and around holidays. (Columbus Day counts as a holiday too.)

Incidentally, be sure to have your passport or passport card with you for this trip, if you plan to visit the Maritime provinces. (But then, you probably already know that.)

I hope you are planning on spending a good number of months for this trip! It's quite extensive (but sounds like a great one!)