Everyone seems to just tear the slate off of them and go with a metal panel roof anymore .

This will require a credit pull (good credit), required inspections (termite, perhaps wood destroying organism, perhaps wind mitigation), and most importantly a good insurance policy (those inspections must pass, and all safety issues corrected...no holes in walls or floors, siding on, good roof, passable electric system...no Federal Pacific panels).  

So when you show up with comps illustrating garbage properties, expect the panel to ask you how you selected your comps, and if you made any improvements.They will ask about your rents.  

Thanks for any inputHi Nick, To add to this discussion, anything that is high dollar, such as utilities so plumbing, electrical panels, HVAC, anything structural, windows can get really expensive.

However convincing a judge or regulatory panel later that it is not an unlicensed business may be more challenging.Disclaimer: I am not a lawyer and not offering legal advice.

. ~$150 from HD.Solar panels on roof.Automatic sprinkler system.Would these be worth the expense?

It has hardwood floors and wood paneling throughout.

, there was essentially no grounding from the electrical panel, not to mention the whole house (including the bathrooms and kitchen) had carpet.

Ground up requires solar panels and usually appraise better, but modular homes are cheaper, require less on-site construction (usually 2-3 weeks only), don't appraise as high, and tenants cannot tell the difference.

The Electric panel is iffy - updating it to not iffy = $15004.