I sent out a guy out there from yellow pages and he said that they have to dig a 12" wide by 2 foot deep "trench" around the whole house foundation, insert an L shaped long piece of metal to prevent any water to get under there any more.

I would dig a little deeper.

Using the BP Calculator is a good once-over (kind of like a sniff test) to see if a property might cash flow, but if you're looking to purchase you'll want to dig a lot deeper.Commercial properties are valued based on their Net Operating Income (NOI) and Cap Rate.  

Highly recommend you dig a bit deeper and specify a market.

I’ll dig a little deeper and run some more numbers.

We hired a company to dig a french drain/sump pump, install one of those black vapor barriers, & they then cemented it.

Thank you.While I am lending exact direction, you will need to dig a bit more on the statutes, to gain full comprehension of the statutes in reference your question.     

And if you dig a hole and water seeps in at 18" deep... that's not good either.

There's a recent thread titled Dodd-Frank, you can ignore that one, there are about 6 people on here who know what's going on, so dig a bit......better yet, get to a mortgage broker.Your first SF deal isn't really a DIY thing anymore, get with your attorney.

I'll dig a bit more into this property but I was really just using it as an example for potential other foreclosed properties that has would fetch the rental and ARV to make numbers work.