I have searched this site extensively, but haven't found anything specific for my situation. I have also made an appointment with the Mieterverband, but the appointment is Thursday, and I would like to have some information going in. Here's the situation:
My husband and I were offered an apartment in mid October for a place where we had previously applied for an apartment (in June). The apartment we were offered, we actually never applied for, but it seems they put us on some kind of waiting list. After seeing and accepting the place, we continued the process with the new agency. By the time our contract was confirmed it was end of October. We immediately sent a kundigen to our current landlord, stating that we want to move for Dec. 1., which he received October 28 via registered mail.
We immediately placed some ads (one here on EF) and showed the place to a few people. We used an application form my OH found on MV for just such a purpose. We only wanted to submit a few applications, knowing how hard it can be to find housing here, and also with the thought that we only had to show one suitable applicant willing to take the lease on its current terms.
We then sent the applications via registered mail to the landlord, which he received on Nov. 4. We did all this hoping to give the landlord enough time to go over the applications, accept one of them if he so chose, and give the prospective new tenant time to arrange a move in.
After the LL received the mail on Friday he immediately put a note in our mailbox, basically saying that it is very short notice to give a Kundigen. Then he proceeded to immediately decline one of the applicants because he hasn't been in CH long enough (still in probation period at work). Then he said the other applicant was missing some documents (but didn't specify WHICH documents) and it would take 2-3 weeks consideration.
Then today we received an e-mail saying that the other applicant is also not acceptable because the LL wants a long-term tenant. I know it is the right of the LL to deny the applications, but can he continue to hold us to our lease after not accepting the applicants we submitted. Both applicants could very well cover the rent. Both gave their Betriebungsauskunft and copies of their auslanderausweis. Neither applicant said anything indicating that their tenancy would be short-term.
And, in fact, when my husband was accepted to this flat ten years ago, he was also still in probation time at his job and had only been in the country for one month.
So what are our obligations now? He indicated he would be willing to let us out of the lease IF we found a nachmieter. Otherwise we would be liable until March 31. He didn't try to supply us with any other type of application form, or tell us which documents he would like us to get from other applicants. But he did ask that we surrender one of our keys to the Hauswart so that the flat can be accessed to show to tenants when we are unavailable. (Which I am not willing to do.) Do I have a right to deny the LL the right of entry when we are not at home?
Sorry about the long ramble.

Thanks in advance for any advice.
B