Are you a REALTOR (not just a licensed agent or broker, but a NAR member). If so, you've probably committed to obey local sign laws that prohibit those typse of signs. If not, you'd at least be guilty of littering.
I have left the "sold" sign in the front yards of several of my rentals for an entire winter without hassle.
I'd check with your city to see what signs or advertisements are allowed. My business partner was told by the city to remove an advertisement for construction services in front of his home several years ago.
You may not, but the city will. Read the municipal code. Most prohibit any sort of sign like bandit signs. And then have a few exceptions, such as "for rent" or "for sale" signs. Bandit signs are illegal almost everywhere. If I was going to break the law for profit I'd choose something more lucrative than bandit signs.