1.  Upon the death of a holder of jointly held property, a surviving holder may disclaim, in whole or part, the greater of:

(a) A fractional share of the property determined by dividing the number 1 by the number of joint holders alive immediately before the death of the holder to whose death the disclaimer relates; or

(b) All of the property except that part of the value of the entire interest attributable to the contribution furnished by the disclaimant.

2.  A disclaimer under subsection 1 takes effect as of the death of the holder of jointly held property to whose death the disclaimer relates.

3.  An interest in jointly held property disclaimed by a surviving holder of the property passes as if the disclaimant predeceased the holder to whose death the disclaimer relates.