Typical is to have the building under contract and past physical DD, just to avoid the cost/time of setting up the LLC and operating agreement. 

But it's not protected under the Federal Fair Housing Act.Here's a link to what's protected under the Federal Fair Housing Act:RaceColorNational OriginReligionSexFamilial StatusDisability   Even apartments.com's own Terms of Service don't seem to prohibit what you posted (again, as long as you didn't reference source of income):Compliance with Fair Housing LawsAll Content is subject to federal fair housing laws, which make it illegal to indicate in any advertisement any preference, limitation, or discrimination because of race, color, religion, sex, physical or mental disability, and/or familial status.

I found this: http://www.loopnet.com/Listing/1764-Gowan-Dr-Memph...I picked this one as an exercise because it needs a lot of work and is in a place I know nothing about.

If they purchase, the option fee amount paid will be reduced from the purchase price to lower the purchase price on the sales agreement, after they exercise their option to purchase.* The property is not sold and title is not transferred until the tenant exercises the option to buy.

@Jordan Gillespie Exercise caution when getting advice on Canadian RE on BP because most of it will be American-specific as this is an American site. 

The deep-dive content one can gain from reading long-form books is unique, whether those books are in physical, or electronic format.  

It might physically still be a box, but as long as the address doesn't say "PO Box", you should be fine.

-How or where do people scan in physical receipts?

I may be displaying my ignorance here, but is there a way to BRRRR a note much like people do with physical real estate?

You will incur interest charges on the money that you physically utilize from the account.