Types of Ownership

[Robert Littke]

I have a client who owns a 10,000 sq. ft. Flex building that he developed two years ago. He occupies about 3,000 sq. ft. and has been unsuccessfully trying to rent out the other portions for over a year.
Part of the problem is it currently shell space and there is just to much on the market that's finished.
I was going to suggest making the property available for purchase. My questions are:
1) Aside from Condo and LLC, what are the other options for transferring ownership in the property?

2) Of these options, which ones provides the most control to the current owner.

3) What are the pros and cons of each.

4) There is a 90% loan on the property, is the bank going to give us any trouble if we break it up?

Thank you for your time.