It basically indicates the ADU is to be approved if there is no Heath and safety issues  (2) The owner of an accessory dwelling unit that receives a notice to correct violations or abate nuisances as described in paragraph (1) may, in the form and manner prescribed by the enforcement agency, submit an application to the enforcement agency requesting that enforcement of the violation be delayed for five years on the basis that correcting the violation is not necessary to protect health and safety.(3) The enforcement agency shall grant an application described in paragraph (2) if the enforcement determines that correcting the violation is not necessary to protect health and safety.

Not meant to scare you by any means, you just want to ensure you have solid answers and a sound game plan.  

Less $ down is a key to your long-term health and growth here.Moreover I'd ask these:  why these 4? 

The current owner said he bought the park in an auction last year and he heard the water well was neglected and the health department shut the park down.

Don't read my old ones, it would scare you away.

I am in the process of removing all the violations which scared away a lot of the other buyers.

These are your highest two offers by >5%, both are offering the same amount, and your seller is putting "I want top dollar" over all-else, so they will be taking one of these two offers - they also ignored your advice for what to put on the multiple offer counter-offers and scared away all buyers but these two, as of now these are the only two offers on the table, and one offer must be accepted tonight because reasons, no more time for back and forth or negotiations, again because reasons.

The seller is an older woman in poor health conditions - currently in hospice - and her only daughter is trying to organize the whole transaction.

It's certainly has scared off other buyers in the past. 

"rotting facia" sounds really scaring but needs interpreted - is it a couple boards that a handyman can replace?