The premise of your question contains misleading assumptions.
It is possible for a group of believers (church) to no longer be able to financially support some facility or accoutrement.
However, a true church exists irrespective of any building, material good, or financial status. A group of believers meeting in an open field is a church. So a church can lose everything, but that doesn't mean that the church ceases to be.
The body of believers is more than buildings and 501.c(3) incorporations.