Hello,   My wife and I just moved into a new apartment in Berlin 2 months ago.  Just last month, we found out that my wife is pregnant.  We now would like to relocate to a larger apartment where we&#39;d have a room for the baby as well as another room for her mother to visit and help out.  (Our apartment is now 65sq meters with only 2 rooms (1 bedroom, 1 living room) and this is insufficient space for a new child as well as visiting family.)  For this reason, we&#39;d like to provide 3 months notice and cancel our rental contract.  My questions:  1.  Is this good enough reason to break our existing contract?    2.  If this is a good enough reason, is a termination letter from a lawyer a better idea or would it be fine for me to send this termination letter?  3.  Even if we did _not_ have this reason to move, is there a German law that allows tenants to give 3 months notice _regardless_ of the contract length?  Any help would be appreciated.  Thank you.

§ 542 Ende des Mietverhältnisses. (1) Ist die Mietzeit nicht bestimmt, so kann jede Vertragspartei das Mietverhältnis nach den gesetzlichen Vorschriften kündigen.(2) Ein Mietverhältnis, das auf bestimmte Zeit eingegangen ist, endet mit dem Ablauf dieser Zeit, sofern es nicht 1.in den gesetzlich zugelassenen Fällen außerordentlich gekündigt oder 2.verlängert wird.