How hard is it to get a Fannie experience waiver?

[Jennifer Antoni]

My husband and I have owned a number of duplexes for 13+ years. Now we're ready to purchase our first 5+ unit property and will need a commercial loan. But I've learned our prior multi-family experience doesn't satisfy Fannie's experience requirements (which will limit us to properties within 100 miles of our home). But I've read that Fannie sometimes permits a waiver  of this experience requirement. Any thoughts? How difficult is it to get one of these waivers? Tips?