How long can you stay with someone on Couchsurfing?

CS is intended for both short and long stays (the host can freely decide), and very long stays are not unheard of, but I agree with the other answers that 2 to 3 nights is the most typical.

Is Couchsurfing free?

Is that okay? No, hospitality on Couchsurfing is free. A host should never ask a guest to pay for their lodging, and a guest should not offer.

What does rapid rehousing help with?

Rapid re-housing provides short-term rental assistance and services. The goals are to help people obtain housing quickly, increase self- sufficiency, and stay housed.