Closing issues from buyer. 5 months delay. CRE financing

[Adrien Gael]

Good afternoon,

I received an offer on 4 units in March. Buyer already purchased 100 units in the same complex 2 years ago. He really wanted my units because he wanted all the complex under his management so I decided to accept his offer.

He promised me an easy closing (1 month) thas was in April. On the contract it stated "Conventional Loan" with the lenders details.

When closing was supposed to take place the buyer informs me that he is taking out a CRE financing (Refinancing I suppose ?)

We are now in September and I still get different reasons why it is not closing (CRE lender not replying, Environment survey...)

I believe the buyer is trying to gain time regarding the refinancing. Is this possible ? 

Does anybody have an idea of what is happening here ?

I appreciate anybodys help on this.

Thank you