The vast majority of trusts these days are made for estate planning purposes and the majority of those trusts can be and are dissolved by the beneficiaries after the grantor passes away.
Some trusts do have provisions that disallow the dissolution of a trust prior to the beneficiaries reaching a certain age. Pretty much all trusts where the beneficiary is a minor are set up that way.
However, the percentage of trusts that are perpetual, or multgenerational, such as Misto and Nextie are describing, is low. You might find an historic home in that type of trust, or great wealth in that kind of trust, but the odds of that kind of trust being done for an ordinary family home, is pretty slim.
From the way that the OP described things in her first post it kind of seems as though her husband is the sole owner of the house now. If he is, then the trust was obviously dissolved.