Utilities are hard to deal with and well and septic add layers to the sale.

Have them check prior to quoting how many layers of shingles there are so there won't be any surprise dump fees.If they offer a warranty, determine if its just the manufacturer warranty or their own and be sure labor is included.

You do not need an LLC for one property that has a mortgage on it.The mortgage is a layer of protection,  then insurance,  you can add an umbrella policy for a 3rd layer.Just maintain your property and you shouldn't have anyone one suing you in the first place.

Most of these are better off as a TIC structure since being a DST adds one more layer and is treated more as a stock sale than property sale so may be licensing issues. 

If it is a over/under your friend is dealing with I would check with the building department if it is possible that the building was constructed to code and if not,  then see if an additional layer of 5/8" fire rated drywall that was taped and mudded with fire rated mud would solve the problem to the appraisers satisfaction.  

I would recommend buying and then going thru their payment plan so it's an added layer of leverage. 

Nothing too crazy but I might just add an additional layer of 5/8 drywall. 

@James HamlingSo you use solid hardwood on the stairs and coat with 2 layers of poly?

I opted to skip the cheap stuff and go with a rigid LVP with a thicker wear layer (and lifetime warranty).

Again, this is vital to learn/appreciate the process and professionals.