You can save all your lists again for easy access (although I would save all the criteria on a separate doc stored on your computer or cloud service just in case listsource.com wants to burn all their paying customers again). 

The Bigger Pockets book store if full of great books: https://www.biggerpockets.com/store

The Bigger Pockets book store if full of great books: https://www.biggerpockets.com/store

The Bigger Pockets book store if full of great books: https://www.biggerpockets.com/store

The Bigger Pockets book store if full of great books: https://www.biggerpockets.com/store

However, if you think about it, it takes 5 minutes at any major store to get a duplicate key made even if they turn them all in.I would go ahead and buy the locks that can be rekeyed by inserting a tool and a new key.

You don't have to deal with leaky toilets, or evict people because they are paying for an area to store items. 

I am reviewing a NNN seller lease back property, seller is a local title lender with 11 retail stores in business since 2004.What are the main things i need to be concerned and looking for, he is offering 10 cap.

The Bigger Pockets book store if full of great books: https://www.biggerpockets.com/store

1) Mileage to property for viewing and inspection prior to purchase.2) Out of town mileage to Property Settlement.3) Mileage to unit and home improvement stores repairing unit after closing.4) Showing unit to prospective tenants after closing but before it was available to rent due to pending repairs.