Section 26-B. Just compensation as including loss of mortgage financing

Notwithstanding any inconsistent provisions of law, whenever property is
  taken pursuant to the  power  of  eminent  domain  (whether  denominated
  condemnation,  appropriation or otherwise) just compensation required by
  the state constitution shall include an amount sufficient to  compensate
  for  the  loss  of existing mortgage financing if such property was used
  prior to taking primarily as a residence however, such amount shall  not
  exceed  fifteen  thousand dollars. In computing the amount of such loss,
  the following shall be considered: (a) the difference  in  the  interest
  rate  payable  on the existing mortgage from that prevailing at the date
  of taking in the area where the property is  located  for  new  mortgage
  loans  on similar types of property to similar borrowers; (b) the length
  of time from the  date  of  taking  to  the  maturity  of  the  existing
  mortgage,  and (c) the prevailing costs to similar mortgage borrowers on
  similar types of property at the date of taking in the  area  where  the
  property  is  located of obtaining and closing a new mortgage loan in an
  amount equal to the unpaid principal balance of the existing mortgage.