Found a condominium but confused about how something impacts me

[Reza Push]

I found a condominium unit I am interested in buying to rent out. It is in a great location in a major city. There are 15 units total and 13/15 are owned by one corporate entity. The agent told me that due to this, it will not be possible/easy to get a loan. I am trying to figure out what that means for me other than the fact that they are essentially the entire HOA. What am I missing in this picture? It does not sound ideal but hardly seems to be so bad that a bank wouldn't lend on it.