It's not true. Amish may sell their homes and farmsteads to the "English" as they call non-members. It is discouraged by the community, however.
Yes, now as I recall, although they don't use electricity in their homes, in some cases they will wire them just in case they need to sell out.
It is discouraged by the community, however.
And that carries a lot of weight with them. But that gets us back to the issue of this thread -- how would they sell to church members only in violation of anti-discrimination law?