Does a buyer's agent side even exist on bank-owned REO listings

Two questions come up constantly for newly licensed agents looking at REO as a niche. First, when a bank lists a repossessed house, does the listing side pay a buyer's agent the way a normal seller would, or do asset managers push buyers to come in unrepresented so the listing side keeps the whole commission? In practice, REO sellers tend to be among the stingiest on co-broke, and it's often negotiated per file rather than following a fixed policy, so it's worth confirming commission terms before investing time on any given listing. Second, BPO work, broker price opinion, driving by a house and filling out a form, gets mentioned constantly as an entry point. It can be a real revenue line for a new licensee building relationships with asset managers, but the pay per BPO is modest relative to the time involved, so it functions better as a way to build a track record and a referral pipeline than as primary income on its own.