Booking Disney Fast Passes for other family

So I am booking a trip for Fall 2019 to celebrate a milestone bday for my DH. DH invited his family, and my MIL, and FIL and his wife are also planning to come (so far). My friend is a TA so I am using her to book our trip. I found out that her company only books the dining reservations for free, but for FP reservations, they charge $10 pp per day. That being said I will most likely do the reservations for FP's myself. I guess my question is, am I able to book FP's for others that have their own reservations, as long as they are linked to mine? I would have liked to try to get FP's together so we could at least go on some rides at the same time.

Booking Disney Fast Passes for other family

yup! you can- just make sure their accounts and yours are linked as "friends and family", and i think theres a setting on there for them to allow you to view and make plans.... then when you go to make the fast passes, you select which people you're getting that fast pass for. it should be pretty easy, until you get into certain people not wanting/ not being tall enough to ride certain rides, so then they end up with their own extra fast passes or whatever.... but if you just do them all for the same rides, it should be pretty easy.

Re: Booking Disney Fast Passes for other family

Absolutely! We have a big group going in October, but we purchased our tickets separately and just added them into the hotel reservation. My sister booked the FPs for everyone.