Trying to buy an investment property, but have to jump through hoops even through paying cash!

I am a principle in a family owned investment company. We have been around for six years buying, selling and holding various properties throughout the years.  My company recently put an offer in on a bank owned property.  So far I have had to provide four, count them four different documents stating that I can actually sign the offer, sign for the financing and any and all documents for the entity.  In the six years we have been a legitmate business, filing taxes, filing all documents the state requires, paying various taxes when due throughout the year, I have never had the problems I'm having now.  We have bank accounts with different banks and lines of credits with those  bank.  I have never had problems opening these accounts with the same forms I provided this bank.  Is anyone else having this problem????