Pay close attention to #'s 4 & 8.
Title 12 USC Sec. 1701j-3.
Title 12 CFR Sec 591 (vi)
(a) For the purpose of this section--,
(d) A lender may not exercise its option pursuant to a due-on-sale clause upon,
(1) the creation of a lien or other encumbrance subordinate to the lender's security instrument which does not relate to a transfer of rights of occupancy in the property;
(2) the creation of a purchase money security interest for household appliances;
(3) a transfer by devise, descent, or operation of law on the death of a joint tenant or tenant by the entirety;
(4) the granting of a leasehold interest of three years or less not containing an option to purchase;
(5) a transfer to a relative resulting from the death of a borrower;
(6) a transfer where the spouse or children of the borrower become an owner of the property;
(7) a transfer resulting from a decree of a dissolution of marriage, legal separation agreement, or from an incidental property settlement agreement, by which the spouse of the borrower becomes an owner of the property;
(8) a transfer into an inter vivos trust in which the borrower is and remains a beneficiary and which does not relate to a transfer of rights of occupancy in the property; or
(9) any other transfer or disposition described in regulations prescribed by the Federal Home Loan Bank Board.