Is this suspicious from the seller/hoa side? refusing to cooperate with lender

My partner and I are looking into purchasing a condo, which was previously non-warrantable due to high % of rental units. However, they have been purposefully selling units as primary residence lately and it should now be warrantable.

We have a very good relationship as private & reward customers with a very large bank that is known to be shitty on their retail side. We have been trying to use them for our mortgage but the HOA has been dodging ALL of their attempts to review the condo to see if it’s now warrantable. Our lender has been exceptionally helpful from here.

There is a local broker that the seller’s side recommended us to who said she has written all (10+) mortgages in that building over the last 18-24 months. However she is quoting us a much worse rate and dodging questions about buying points. Talking to her feels like going through a used car salesman.

Our agent forwarded an email chain to us where our lender from the large bank is trying professionally to get everything he needs in a timely manner and they are straight up dodging questions and being outright rude to him and insulting the company he works for.

What do we even do at this point?