Housing Birthmothers (cross posted)

Hopping over from the adoptees board to ask a question about another situation in my family! Another family member is currently in the process of trying to adopt a second child (their first child, adopted at birth, is almost 3 years old). Their agency called them a couple weeks ago asking them to provide housing for a potential birthmother (my words--not the agencies, the assumption of course is that she will place) who needed to stay in their area. They agreed, but the agency hasn't been specific about what the expectations are. I'm wondering if others have had the experience of housing a potential birthmother & can share what their responsibilities and expectations were, and what the agency did. I have some significant concerns about the agency & their expectations, and the lack of support my relatives are receiving from the caseworker. I would be interested in sharing more details about my concerns via private message, don't want to post any details publicly due to privacy issues.