My understanding is that the Protocal for the separation of the UMC conveys all church properties (land and building) to the local congregations that vote to leave the UMC. This was stated in a meeting of our local congregation with the regional bishop over a year ago, but things may have changed since then.
I’m glad to hear they can keep their property. Unfortunately there has been years of confiscation. A Methodist pastor in a small town near us broke ties with his church and some urged him to start another one. . . non-Methodist. They started with 14 people and in less than a year have 94.