Many MLS' are not
RETS compliant, or will not allow access to thier RETS database. One reason is
that they do not want to 'lose control' of the 'solds' database, as they did
with the 'actives'.
Another reason they
will not share it, if they have it, is that they expect FNRES (Agent Office) to
pay for access. FNRES will not do that, and I don't blame them.
Top Producer, in some
markets, has written their own software to interface with the indivual MLS.
FNRES will not be doing that, as it is too cost prohibitive. Their answer to the
interface issue was to make AO RETS compliant.
If it ends up that
you can not get access to the MLS for AO, I would encourage you find another
avenue for CMA's, without switching to Top Producer. The grass is always greener
on the other side. MLS access is only one small part AO or TP. Try to look at
the big picture.