She may be able to help you with the specific items you require.  

A couple specific items that would be really helpful for us:1.

Anybody with knowledge with taxes: what specific items can you deduct for tax purposes?

Home inspectors can be great at the job they are doing for the basic aspects of a house but many times they don't know enough about specific items like a furnace to give a responsible recommendation.  

I don't use credit scores alone, I look for specific items.

I am using plenty of them for road travel and keep them for air travel only for some specific items.

Using the specific item prices, come up with your own $/sqft.

For instance, if I go to Home Depot and buy a vanity and a range for Property LLC and also buy a drill and some other supplies that will be used for all my properties, do I have to purchase the general supplies using my management LLC bank account, but the property specific items out of the Property LLC account?

Do you have suggestions on specific items to ask the seller for, other than cap ex, to try and lower my risk here?

An LOI is non-binding so don't get overly concerned.The best place to start is ask the seller if there are any specific items he wants to see in the LOI.