Is there a way to legally require a larger security deposit?

If you've had a good experience with them, I'd also like to hear about it as I am still collecting all the documents they want before proceeding to the underwriters (which has been way more time intensive than my last condo purchase - which that particular mortgage company did most of the heavy lifting for me but man were they expensive!).

She sent a document template which lists her LLC as the Second Party, and I would be the First Party.

My bank insisted that I not mix funds for legal reasons.

Also, I am looking for the occupant in hopes of gaining entry legally. 

If the seller still doesnt close, what is  my legal recourse?

Hence the title—economic AND legal.

I can also view all documents but have to click on each one to physically see which ones have actual large amounts of taxes due and which ones don't. 

Having lived on Oahu for the past year, we are excited for this venture.Knowing that there are many complexities in the law, we were wondering if anyone had any experience/knowledge on how to do this legally.

I haven't found anything that says you can, but I have found several HUD documents determining CLI (Cost of Living Index), Fair Market Rents by State and County as well Section 8 rent values.