Neighbors on the Little Mesa in Bolinas settled a lawsuit this month over property boundaries and an unpermitted second unit that has housed a longtime resident. As a result, Helen Sirica—a midwife who has lived in the unit off Crescente Avenue for 14 years—will have to move off the property owned by Liliane Ninaud and Jerry Tergis, according to local attorney Jack Siedman, who is representing all three defendants.

Ms. Sirica is the latest in…