Cook the home to 130 degrees, then have a licensed person spray.

It's 30 minutes outside of Chicago, so the rental rates are pretty solid....until you remember that it's still under Cook county's property taxes. 

Hi all,Recently purchased a multi and one of the first projects I’m planning is converting the property from oil to nat gas heating (there is nat gas going to the house already for water heaters).

Be careful of too many cooks in the kitchen.

I would upgrade a slummy looking kitchen or bath with builder grade materials or do tweaks to something old looking but in good condition (refinish a pink cast iron tub, use oil based paint to cover dated bath tile in good condition, paint good condition cabinets white and add new counters)

Chicago and Cook county have different rules than the rest of the state.

Overall, I'm a bit hesitant purchasing in Cook County and would appreciate any insight.

Most posters say to use oil based Kilz, but are you also using some sort of enzyme odor remover prior to this?

I think @Ethan Cooke has the best idea for you.

We installed a water well, fencing, a compacted house pad, and built an $80k barn/workshop.Before we could start the house, I got laid off (oil & gas) and we converted about 1,000sf of the barn to living space.