Get it straight from the lion's mouth.IRS PublicationHow to distinguish between hobby and businessAll I can find is that your home office must meet two requirements: Regular and exclusive use.Principal place of your business.If you manage your business primarily from home and use that space exclusively for that business, then it sounds like it matches.

If there are multiple properties on one deed, ie a house and a garage apartment, I put them in Quickbooks on the deeded property and make a memo to distinguish which building an expense is for. 

How to distinguish themselves from the number on a bandit sign.

Came across a great article to help newbies (and myself) distinguish between the two...https://www.investorssudbury.com/single-post/2017/09/05/ROI-versus-CAP-Rate-What’s-the-difference

Newbie question how can i distinguish mutli family homes from SFH while driving for $.

Aaron:It is important to distinguish between small multi-family housing and apartment multi-family housing. 

And you will start distinguishing yourself as a leader in your field even as you learn.I'm excited for you! 

My requirements do not distinguish one type of debt from another.

Since this is likely one of the most popular topics on the forums, I would like to get as much feedback, and provide as much help as possible in the hopes that it will, at a minimum, show the possibilities...First, let's distinguish between Prospects and Leads. 

Unless you somehow intend to distinguish being friendly and courteous from being friends (and I don't see it) then what you have said there is self contradictory.