Is his property on the farming/sunny side of Washington, or the Coastal/rainy side? They do get snow in some areas.
I love to research climate friendly plants because I like to try to grow what shouldn't just to see if I can. Lots of research can be done on the web, and I'm sure there are members here from Washington State, and places with similar climates world-wide. I found UC Davis to be my best friend in researching wine grape vines that crave heat, wind, and tough conditions, but most figs they offer have "unknown" origins.
Look for countries with similar climates and see which figs are best, then you should be fine.
I know I got off topic. What you want to know is if those 3 figs will make it in Washington because your dad probably doesn't want to worry about die-back in winter.
Good luck Nichole!
Suzi
YIKES! What if one of those is climate friendly, and the other two die back in winter. That will be some weird looking braid!
Jealous of your dad's acreage for sure :-))