And the section 8 requirements I don't see what you are referring too because I know they do a yearly checkup but that's just for safety most things you won't have to worry about.

Depending on the area, it may require more than one policy - i.e. a hazard policy, a flood policy, and a wind policy (not their official names).

Secondly, if there is a larceny (or worse), you want a clear conscience (and no culpability) if you are ever asked by LE or courts whether you changed the locks or not.I know some people on here don't like them, but I have had good results with the Kwikset Smartkey system, which makes this a 30 second job.It's really a small price to pay for great return via goodwill and safety.

The inspector calls out the safety risk, but we have no idea who we should contact to fix it(we want to keep the trees if possible)?

A lender's title policy and also hazard insurance naming you as the mortgagee is mandatory.

If she wants justification you can call it outside storage and a fire hazard.

The first property I was warned about needing to have to fix the sidewalks and driveway due to trip hazards by my commercial insurance broker. 

Also, letting them know now that I expect the place to meet certain “cleanliness” standards for health and fire safety reasons.Anyone else have thoughts on this situation?

You'll have the safety of having earned equity and protecting it.

Disadvantaged to be aware of include fire and life safety, increase in structural support, difficulty in construction logistically.Your best bet is meet with a local GC.