Eventually people die off and the homes go up for sale cheap, get abandoned and the park owner picks em up cheap and takes in the extra little bit of cash for the POH rental. 

Is it worth it for someone like me who hasn't done any deals yet, but is going to be making offers on my 1st investment property in the spring?

Have to agree with most here in that a SF-> duplex conversion needs some really specific qualities to be worth the squeeze.

Some markets are better for cash flow.

@John Reagan Johnson hope you don't mind a PMC answering, but most of our clients hire us because:1) They live out of state and don't have time & expertise to remote manage2) They don't have the time to manage3) They don't feel they have the necessary expertise and/or don't want to risk learning as they go and making an expensive mistake.Go read Kiosaki's Cash Flow Quadrant book.

It's worth paying a premium for the brick buildings that were built for multifamily.

A lot of it has to do with location and time.If they are local owners looking at 1-2 LTR properties, I'll assist with identifying cash flowing/near cash flowing properties, assist them in the purchase as their buyers agent and assist with tenant procurement, listing, etc. but they can typically handle day to day management from there.Furnished properties, whether that be MTR or STR, are a lot more involved, as I'm sure you're aware of!

Not worth it to me.In my area if the pool has a powered safety cover that can hold body weight, then a barrier fence is not required.

Quote from @Casey Wilson: Hi there, I was wondering if any Detroit-metro experts from the PB community could offer advice on what areas in the Detroit-metro area might be worth exploring for rental properties (ranging from single family homes to 5+ unit apartment complexes).

I'd also suggest self-managing your first property to maximize cash flow and learn by doing for any future investments.