I wouldn't lose any sleep about being a couple grand off on the rehab or closing costs, the real test is going to be when you attempt to refinance, assuming you can get the rehab completed. 

I just didn't take the tests for that Licensing.

So a few things that will not pass the sniff test- a family of 4 moving from a 3000 sq ft single family home and moving into 1 unit of a 4 unit complex with only 2000 sq ft- see what I am saying- what would be the motivation and how could an underwriter justify it?? 

That said, if you're good with on-line learning and test taking you will be fine. 

I’m a seattle native, local investor, and will be an agent shortly (taking the test in the next 2 weeks).  

It looks like the total cost after testing is about ~425$.

Luckily the wall had eggshell finish already and it was easy to scrub.I would smell test the slab after pulling the flooring back.

Above troubleshooting doesn't mean you couldn't have both a Supply INPUT Issue, and a Sewage OUTPUT issue.For Sewer System Leak, you'll need a plumber to do a Hydrostatic Test. 1.

This whole thing just seems fishy to me, it doesnt pass the "sniff test"

., & Workers Comp. insurance companies all have "Tests" to determine if someone is truly a subcontractor or an employee for Taxes or for Insurance.