I fix everything, err on the side of giving more of the security deposit back, and use quality well-priced subs.

So if you err on the side of caution, keep 7 years.

Lumber prices shot to new heights.West Fraser and rivals such as Weyerhaeuser Co. and Interfor Corp. haven’t caught up, despite ramping mills back up to capacity.In autumn, prices dropped on another erroneous assumption: that building season was winding down.

You want the deal to err on the side of being conservative.

I hope I'm being helpful and not erroneously assuming you don't know this, but that's called land development if that helps give you some key words to search for as you learn about that specialty within real estate.

You can err on the side of keeping the tenants happier, or on the side of minimizing your expenses.

There are definitely tenants taking advantage, but many tenants are in a tough spot so we as investors would be wise to err on the side of caution. 

I always try to err on the conservative side when running numbers.

Best practice is to always err on the side of caution especially when dealing with investors. 

I want to do it like real brokers, Ive watched countless youtube videos.. however, I am aware that they teach erroneous things.