Will I be able to get half of my spouse’s trust if we divorce?

This will depend on whether the trust is revocable, irrevocable, and whether your spouse is the grantor. If the trust is an irrevocable trust, then the beneficiary designations remain the same and the house remains property of the Trust.    You may have to seek to have the trust dissolved as part of the divorce in order to obtain any of the assets in it. This will be a difficult fight to convince the court that the Trust property should be considered marital property, as frequently it is placed in trust in order to avoid the property being considered marital property.