See also the practice of "Enclosure" for an additional example.

In addition, being a peasant often had some properties of slavery: no freedom of mobility or choice and sometimes lack of pay, with the express approval of the local lord required for many things. See the Revolt of 1381.

The Lord-Peasant relationship is really not a positive example of preventing homelessness, but either way, let's face it: It was the Government supporting those people. Arguing from the historic example of feudalism as a method that prevented homelessness would mean you're arguing that the government should be directly supporting the homeless.

2. I’m not arguing that feudalism was good. I’m arguing that homelessness is a historically embedded phenomenon, and was essentially non-existent in pre-modern times and then it became markedly more prevalent in the last 40 years. I’m not sure about all the causes of or solutions to homelessness, but I do think if it were the priority, homelessness could be resolved at the price of imposing some other trade off problems (which might be worse on net).