Official communist stance: Corporate landlords who spend all their resources into buying more houses to price everyone out of the market. Renting out a single room out of your family house is immoral, but doesn't hold a candle to the absolute evil of corporate landlords.
Remember: Communists don't give a shit about individuals; that's liberalism. They care about systems and dismantling them. It's those who throw themselves in front of those systems to defend them who end up becoming causalities. There are plenty of examples in socialist history where the most evil of abusers would willingly give up their power (out of cowardice) and would ultimately go on to live a normal life. Perfect example of this was the literal king of China who the figurehead of the system oppressing them. When the communists won they gave up their power and their response was pretty much "You had no way of knowing what you were doing was wrong, we're going to teach you why it was wrong" and even though it was a LOT of work, they did eventually get the picture and integrated into post-monarchy society.
TL;DR don't die on the hill and you won't die on the hill