The basis of the property increases 10% of your original gain at the 5 year mark, another 5% at the 7 year mark, and after 10 years the gain is capped off. 

@William MurdenIf there is a broker involved they might have looked at the supply index but I've rarely seen brokers do that and even then I'd do my own due diligence on it.I recommend picking up a copy of the Self Storage Almanac from Mini Storage Messenger.https://www.ministoragemessenger.com/product/2018-self-storage-almanac/As far as doing your own research on the supply index, @Mark Byrge is correct.

Mark,I have that problem too, every once in a while.

Let’s say we sell R and after the sale related cost (commission, closing cost, remodeling before putting it on mark, etc), we have $325K (part of it has been used to paying off the loan of course).

Popular social-media platform Facebook may have gotten even more popular this week as founder and chief executive officer Mark Zuckerberg testifies to Congress about the company's potential misuse of user data and privacy: Its stock price actually increased."

It puts a black mark on the tenants history that will protect the rest of the landlords.

Typically the five year mark is my tipping point.

It's not uncommon for investors to have penalty clauses the same way they have bonus ones.Also big box retailers are not necessarily the best place to get your materials and especially labor.They can definitely be good for some things but I wouldn't rely on them as a "one stop shop" kinda deal.I'd look for more local supply stores and subs/trades that can install without the big box mark up.

@Mark - 7 day period ended yesterday. 

Full Disclosure, I'm part of the group and love the founders, Mark and Tamiel Kenney.