You don't get 100% simply because you replaced the item.

Handyman after guest vacates replaces toilet, breaks old toilet to find vape in toilet.  

$540 is not unreasonable for a home of that size and the items you mention.

In my personal experiences a lot of structural items start with bad drainage.

Regarding borrow's DTI, Chase thinks that this item is not that important.I wonder will my high DTI impact the loan underwriting?

Wanted to get some thoughts from more seasoned small multifamily investors on a few items or any other suggestions:- Any specific pros/cons of any particular states in SE (TN, AL, GA, NC, SC) to consider?

I think you're confusing the quantity of items with curb appeal.

Some may have very small thresholds for repair holdbacks on purchases but this is typically limited to make ready items not to exceed $2,500 in costs to cure.

They make ordering items from different companies easy, and you get discounts from each store that has partnered with them. 

In The Tampa Bay Area local investor in the items inside the home/business but looking to get with the right people to build a team.