There are many guest houses, boarding houses and motels converted to long-term accommodation appearing on the market. To the best of my knowledge the options listed below offer safe accommodation, and the advertised prices are often negotiable for suitable longer-term tenants, but let the buyer beware.
Sites offering share housing - including for seniors - are proliferating on the web. However there are a number of potential issues with share housing you should take into account. Note that private Facebook groups do not share an image so the only image available is a login image.