Homeownership is generally more correlated with wealth and financial security, which is more correlated with political involvement and having the time and the money to do so.

Short of massively expanding the poor's ability to vote (making Election Day a holiday, putting it on a weekend, mail-in voting) this holds true in American elections.

True. Although since they are literally more invested in their community, they tend to be more tenacious about it.

I have observed the opposite. Slum lord owns over 50 rental properties, but does not live in the city, and tenants are registered voters of the municipality.

My anecdote for the morning.

I wouldn't normally think of absentee landlords as the central example of a homeowner. Where do you live that the majority of housing units are owned by absentee landlords?

Rural incorporated city with a population of less than 5,000.