Do you have a will? If so, what does your will state regarding this property? Have you updated your will since your marriage? If the house is left solely to your husband should you die first, then it would be correct that he could chose who to give it to upon his death. If you die without a will, MN law dictates the surviving spouse benefits (see below...bolding was added by me).
Minnesota does allow for postnutial agreements however. This might be the way to go, since it seems as if husband is in agreement. The text is too long to copy/paste here, but this link should help you. https://www.revisor.mn.gov/statutes/?id=519.11&year=2009&keyword_type=all&keyword=postnuptial
524.2-102 SHARE OF THE SPOUSE.
The intestate share of a decedent's surviving spouse is:
(2) the first $150,000, plus one-half of any balance of the
intestate estate, if all of the decedent's surviving descendants are
also descendants of the surviving spouse and the surviving spouse has
one or more surviving descendants who are not descendants of the
decedent, or if one or more of the decedent's surviving descendants are
not descendants of the surviving spouse.
524.2-301 ENTITLEMENT OF SPOUSE; PREMARITAL WILL.
(a) If a testator married after making a will and
the spouse survives the testator, the surviving spouse shall receive a
share of the estate of the testator equal in value to that which the
surviving spouse would have received if the testator had died intestate,
(1) provision has been made for, or waived by, the spouse by prenuptial or postnuptial agreement;
(2) the will discloses an intention not to make provision for the spouse; or
(3) the spouse is provided for in the will.
(b) In satisfying the share provided by this
section, devises made by the will other than a devise to a child of the
testator who was born before the testator married the surviving spouse
and who is not a child of the surviving spouse or a devise or substitute
gift under section
524.2-604 to a descendant of such a child, abate first as otherwise provided in section