Crawl Space Advice; can't see it until after closing

[Simon Cox]

Hey everyone! I'm in search of a little advice.
I'm speaking to an investor about purchasing an occupied rental in Dearborn Heights (Southeast Michigan). He is giving me a good deal and is even carrying the note which makes this very attractive at my stage in investing! The house is on a slab. There was a fire 3 years ago that resulted in a new roof, new electrical system, new siding as well as the house being jacked up a little bit while the floor was open. The work was all done by a reputable contractor that I know and trust.

The roof is a little wavy and there are multiple gentle slopes in the house, one of which doesn't allow the bathroom door to close properly.I had someone come out to the property today to check the crawl space but the new vinyl siding covers the access so it looks as if I won't be able to see it before buying. If I buy it, I'll have to cut a new access and then get in to see what's there.

Any recommendations or words of wisdom for a crawl space? I have not dealt with them before.

Thanks!