Hey Howdy Hey Laura and welcome to planDisney!
The new addition of
Lightning Lane Multi Pass and Single Pass options gives much more time to plan for your Magical vacation. This also brings up many questions on timing that will need to be addressed such as your question about staying offsite and purchasing your Lightning Lanes. Let's review the specifics so you can better plan for your vacation.
I am happy to report that as long as your tickets are linked to your account,
3 days before your date of arrival you can begin purchasing your Lightning Lane Multi Pass and Single Passes. The system should recognize you have multiple tickets and should allow you to make the purchase for your whole vacation.
One helpful tip is to work from back to front when making your selections. There are many people who have the opportunity to purchase and select their Lightning Lane options early in your vacation where you may see more limitations in availability. If you have high-priority attractions you want to experience, you may want to save these for later in your vacation so you have a better shot at purchasing and making the selections you want. You can then work backward for options earlier in your vacation.
Best of luck getting all of your "must-do" attractions booked. If you have any further questions, please let us know, we are always happy to help!
To Infinity and Beyond,
Nick