I’ll be sure to put 6 panel doors, recessed lighting, vibrant gray colors, SS appliances, and a microwave in my next flip.

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.

They are typically chrome colored and can be installed on any faucet.

They wouldn't have dared color on the walls, flushed Ducky down the hole, or anything else. 

I always recommend replacing with neutral colors rather than giving a credit.

The house currently has tile throughout, however, the br are different color tile than the hall, and the 1 bath has a different color tile than the br.  

@Rose Pongyan It depends on your lease.

This may not be obscure knowledge, but it blew my mind when a kitchen retailer gave me this tip yesterday: When rehabbing a kitchen, don't replace the cabinet boxes unless they are in bad shape (or you're using a natural wood finish that you won't be able to color match).

It's very easy and quick to install,  it comes in every Style  and color imaginable,  and it's very affordable... all on top of being  very durable  especially for rentals

Rose area called "Pine Hills".