First Commercial Term Sheet-- Are these reasonable terms?

[Eric Army]

Hi- I just received my first commercial term sheet. 
I'm looking at a commercial property (small mill building for my architecture office) with an asking price of $135k, needing about $100k in rehab. 
I am used to residential mortgages (i.e., for multi-family property) and there are a number of "terms" to the term-sheet that seem onerous. Any suggestions on which are common & which could use some push-back?
[This would be an SBA 504 loan (50% from the bank, 40% from an SBA-CDC, 10% down), and the bank is evaluating my business's ability to generate cash flow to pay for it (not the property's ability to generate cash-flow).]

-Prepayment penalty for first 5 years (5% of principal balance in year one down to 1% in year 5)
-Checking account with bank offering note, avg daily balance of $10k
-Annual review of my Global Debt Service Coverage (GDSC) & Standalone debt-service
-Rates are around 5.5% (FHLB +3.5), readjusting every 4yrs

The GDSC seems to state that if my income drops, they could call the note, which doesn't seem very sporting of them. (I've got a question into the lender on this, of course.)
(And yes, I am soliciting proposals from multiple local lenders.)

Thanks!