How assets are handled when two churches merged?

I would suppose that all the assets are pooled when two churches merge, but it is possible that some would be offered back to the donors.   You might have some duplication of sound systems or food service, and you probably are merging because both churches have lost members.  You may be planning to sell one of the church properties.

It is possible to have two churches use the same building but keep separate accounts.  You could have the property owned by one and rented by the other, or it could be jointly owned with expenses shared.

The real question might be what to do if one property is sold and there is surplus cash.  Some churches might decide to give to a charity or two.  Or the property might sometimes be sold below market value to another church that needs a home.

Maybe the question should be how the assets will be handled if the two churches want to separate.  That is something to agree on beforehand.  And that might require keeping separate accounting, at least for a while, and not giving away assets.

As the congregations direct.