Divorce - refi primary options

[David Yamamoto]

So, going through the big D and obviously this has turned things upside down for me... I am staying in the primary residence, wife is moving out and keeping our single SFR out of state investment property. So far things have been very amicable.

So - my question - my current mortgage holder gave me two options to refi and remove my wife's name from the loan both keep the current 4.x% rate but one can be done within 45 days and the loan starts again at 30 years.
The other option, an assumption process, takes 4-6 months, retains the 4.x% rate but keeps the life of the loan at the current 24 months.

I'll be rolling a HELOC into the loan.

My question is:  the longer term of 30 years will lower the monthly outlay a little bit and speed the process of getting my wife's name off the loan.  The 24 year option keeps the term of the loan shorter, raises the monthly outlay a little bit and delays getting my wife off the loan by a few months.  

Is there any benefit of one option over the other?  Perhaps tax wise or ?? 

Thank you for any insight, it is much appreciated!

David.