Seventy to 90 children in Marin County are in need of foster care at any given time, Marin County Children and Family Services says, and the agency has only 28 families signed up to help. An orientation for potential foster parents will be held on Tuesday, June 18 at the Marin County Health and Wellness Campus, in San Rafael. “Foster parents provide transitional homes to boys and girls of all ages, typically for six to 12 months or so,” Cindy Wasserman, a child welfare worker with the county, said in a press release. She emphasized that foster parents may be single or part of a couple, any gender and adult age, of any sexual orientation as well as willing to work as part of a team and provide “patience, stability and love.” The county is particularly looking for families who can care for sibling groups. The orientation begins at 7 p.m. and will include presentations by both a social worker and an experienced foster parent. A second orientation will take place at the same time and place on Thursday, July 18. For more information, call Ms. Wasserman at (415) 473.5028.