Wash all of the surfaces in the home with bleach or vinegar, or pet odor remover if there is pet spray.

A 50/50 solution of bleach and water will address most of the issues.

He never sent somebody to clean the inside so I bleached it myself and tossed out containmed furniture.

Once the cat urine gets in the wood, it's in for good.There are typically two ways to work on a stain like this, wood bleach and oxalic acid.

The unit was installed up to local codes and the technician, instructed the tenant that the filter needed to be changed and Bleach/ Vinegar added to the drain line every 30 days.

So I bleached the subfloor after removing the carpets and padding and that fixed my smell issue.Regarding HELOC, yes, you can use the funds from your HELOC to do whatever you want with it.

Also, we have repeatedly asked for a mold assessment to be done on the basement but that was largely ignored. 5 weeks after the flood the LL came by to spray the walls with bleach but that is it.Now, the work has finally been finished but the basement is a disaster.

I bleached the walls and cleared most the items out but there is still a strong musty odor. 

Use porcelain white out or bleach.

Should be able to use wood bleach( try bartenders friend has same active ingredient) on the stained area sand and refinish counters.