If it turns out the violation is for something minor fine but if its a sewage/sanitary code violation where you have to excavate and run new sewage pipes you may want to get out of the deal and get your deposit back. 

Can you conduct a basic analysis on a piece of paper or napkin?

There are sanitary considerations that trump everything else.

There is that old back of the napkin math that tells us that 90% of normal MLS properties (non-REO, non-pre-foreclosure) sell for 10% off asking (of course, this is in markets that are not hyper where bidding wars cause contracts to go over asking price - like DC).

This is because the VA loan requires a VA appraisal which requires the home to meet the 3 Ss; safe, structurally sounds, and sanitary.

Heck, they can even write it on a napkin. 

We took them a napkin sketch of the proposed kitchen layout with rough sizes of the walls and where appliances would be.

Using a cocktail napkin as your financial planner is a bad business strategy.

They are numbered 1-13 in our rental agreement.Here you go:13.Any illegal substance use on the part of TENANT, his/her family or guests shall be cause for expedited eviction.12.No parities may be held at this residence.A party is defined as any gathering of guests that creates a noise level that can be heard by neighboring tenants.11.Absolutely no waterbeds or water furnishings may be used in or on the premises unless otherwise provided herein.10.Nails may not be put in the walls without prior written permission from the LANDLORD.Nail holes should be small and unnoticeable.If the holes are large or visible, a charge of $5.00 for each hole will be made for repair.No decals or contact paper is to be put on any woodwork, walls, appliances, or cabinets.Nothing may be taped to any walls.9.TENANT will see that the conduct of him/her self, his/her family, and guests are not disorderly, boisterous, or unlawful; that it does not interfere with the rights or comforts of the other persons on or adjacent to the premises and that visits by the police to the premises for any of the above is grounds for eviction.8.TENANT will promptly report all leaking faucets or toilets.Water shall not be left running except in winter, when it is sometimes used to prevent frozen pipes.Tenant will accept all responsibility for due to neglect, including frozen pipes. 7.TENANT will properly operate all appliances, fixtures, and plumbing supplied by the LANDLORD.This includes, but is not limited to, coin operated appliances used by TENANTS.6.TENANT will keep clean and sanitary and comply with all laws and ordinances.5.TENANT will reimburse LANDLORD for replacing all broken glass regardless of cause.4.The LANDLORD will maintain the yards in cases of an apartment building with common grounds.TENANT will in case show proper respect and care of the surrounding yard and property of the residence.TENANT agrees to pay for all damages done to the yards, shrubs, trees, etc. by him/ herself, guests or agents.Parking any motor vehicles on the lawn or landscape is also forbidden.

These are all things you can back-of-the-napkin model on a spreadsheet.