Ask the bank to estimate or even cap legal fees up front to avoid later problems. Be sure your lawyer knows you want the loan and you are not interested in winning all the loan documentation points with bank counsel while losing the loan. Be sure the bank commitment letter is complete to avoid closing and future renewal problems. Try not to borrow through unusual entities. Personal revocable living trusts are a problem.
Irrevocable trusts are very difficult.
Corporations with minority shareholders cause concerns. Corporation financial statements often need explanation. Pension plans are especially difficult. They raise concerns for the bank that it has a good lien on all collateral. It gives the lender foreign law concerns and extensive monitoring problems.