A young man discovers that he's inherited an apartment building his father owned, so now he has the run of the joint, but chaos often ensues.
Hey, Landlord was the first series created for television by Garry Marshall with writing partner Jerry Belson. The two would later develop The Odd Couple for ABC, and that turned out to be the first of a series of lasting successes, mostly for Marshall, who stayed at ABC and built a cottage industry of sitcoms (i.e. Happy Days) during the 70's.
Will Hutchins (ex-Sugarfoot) was the heir to the apartment building, though we can't say there was a fortune to be had. Sandy Baron co-starred as his best pal/sidekick, which was of course a regular trope in sitcoms in those days.
Never saw the show, so there won't be a fair rating. What we will do, though, is leave you with a short clip that features a future star in Richard Dreyfuss.
In memory of Garry Marshall, who passed away at 81.