Market evaluations are subjective. As such, they can be vastly different. If an evaluation sounds too good to be true, make sure the Realtor can back up their numbers.
I’m not sure what paperwork your daughter and her ex had to sign, but if it was a one-year lease two years ago, the term is up and she no longer has any obligation.
In my last 16 years of real estate practice, I’ve never had a house with UFFI whose test readings weren’t close to nil. Despite a lack of evidence to support the notion that UFFI is problematic, there remains a pre-printed section of the Agreement of Purchase and Sale that speaks specifically to whether or not a house has UFFI.