** Kepler Cheuvreux upgrades Belgian real estate company Cofinimmo COFB.BR to "buy" from "hold" in light of a proposed tie-up with Aedifica AOO.BR
** "The combined entity will have improved firepower, and Aedifica could return to its acquisition path," it says, adding the combined company could see higher passive inflows into the shares
** Despite some share price weakness in December, the broker says it holds a positive view of Aedifica's shares, "given the current multiples versus the growth outlook" and ups its rating to "buy" from "hold"
** On the other hand, Kepler downgrades Colonial SFL COL.MC to "hold" from "buy", citing a more unstable occupier market in Paris and "the need for deleveraging given the unpredictable investment environment"
(Reporting by Javi West Larrañaga)
((javier.west@thomsonreuters.com; +34 918 35 61 12))