Leigh Kamping-Carder

Aside from being a decorating fallback for those of us too lazy to paint—that salmon-colored entryway isn’t really that bad, right?—removable wallpaper is also a good one for renters, since it comes down with minimal fuss.

But when you consider that it can cost $40 or $50 for a few square feet, doing a full room can get pricey—fast, as Apartment Therapy points out.

Whether it's your first time rooming with someone, or your fifth, conflict will likely ensue. There's so much fodder for friction: What’s the best way to look for an apartment, who gets which bedroom, how do you make sure the damn place gets cleaned?

We compiled some of the trickiest roommate-related conundrums and canvassed average New Yorkers, real estate brokers and roommate experts for their best advice:

1. How do you figure out if you're compatible?

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Q: I'm looking to rent out a room in my apartment. Can I legally advertise my place as LGBT-friendly? Am I allowed to ask how old potential roommates are? Can I ask them for references?