How are single-stranded binding proteins removed from the lagging strand during DNA replication?
Actually, there has been some evidence that the SSBPs keep the bases facing outwards so DNA polymerase can still replicate the lagging strand with the SSBPs on them. There has also been other evidence that they can pop off spontaneously.

You can learn more about this by watching the lectures on https://www.edx.org/course/molecular-biology-part-1-dna-replication-and-repair