DADU to Condo issues

[Tim Kirkland]

So i built a DADU and have gone through the process of Condo-izing the property to sell each house separately.  Next i was going to reconvey or recast the note to split the debt between both houses.  This was in case one house sold and the other sat for a while on the market.  Or i might hang on to one rental.  But my lender has refused to recast the note.   

If I sell, am i forced to sell both at the same time, due to the note being called due?  Do i have to pay for a refinance just to split the note, to sell individually?  The note is tied to house A.

Numbers:

House A: $400k

House B: $525k

Debt: $450K

Let me know what you think.