I don't think its a good idea. Once the apostates take over 1/2 of the church property, they will infiltrate the ranks of the conservative churches and then seek to steal the other half as well. These apostates are picking off the lukewarm churches one at a time and creating new lukewarm churches while chasing away conservatives and true believers.
If these denominations are to survive, they have to fight to cleanse the whole church of the apostates, not surrender half the property to them. Compromise is the earmark of the Laodedean Church.
Interesting you say that conservatives should not quit the fight but should, instead, fight for control of the denomination. Interesting that you cite Laodicea.
In none of the 7 churches is there an instruction to quit. Rather, there is an instruction to overcome. I like your thinking.
The legal question in 21st Century America is how to contest legal ownership with an heretic group which has thoroughly infiltrated the hierarchy and passes itself off as the denominational heirs of traditions and properties. We people look at the denomination's confession of faith or articles of religion, at the denomination's history and traditions, and even at the denomination's founders, and we are certain that we are the true heirs of that denomination.
How does one convince a court of law of that truth?
If we could answer that question, we could cast out the heretics.