Good point, hmdagal. Our counsel recommended that in situations where the husband/wife are trustees and we're mortgaging their homestead we have them sign as individuals too. Virtually all of these trusts are revokable which means that the property could be taken out of the trust at any time during the life of the loan. Could get messy if the loan goes into default.
And remember, if they sign as individuals, Respa does apply too.