:)Just kidding.1) Stock market: may want to do this while exploring other options, just make sure funds are easily accessible2) Buy Multi-unit: two basic options:- Buy turnkey: may not cashflow for 3-5 years, depending on your management skills.- Buy someone else's problem: can you fix their problems?

LOL   That is exactly what I would expect from the Detroit City Government.If you go there, they are likely going to say you first need a license from a different office on the other side of town and when you drive there, they will say you need an appointment with them, but they only have appointments the third Thursday of each month.  

Alternatively, I could explore hard money lenders.

One option might be to explore adding air purifiers or filters directly into the system to help mitigate odors.

What part of town are you in?

I have two: one is my primary residence that I also use as an STR, and the other is a leased rental property that I manage remotely.Since I'm out of town, I'm finding it challenging to manage things like finding a reliable handyman and getting help with staging.

Recommend exploring as many sources as possible to get referrals AND cross-reference them to get as much accurate information as possible.Check out NARPM.com, BP’s Property Manager Finder (BiggerPockets: The Real Estate Investing Social Network), etc.Also, encourage you to learn from the mistakes of others - by reading posts here on BiggerPockets about owners not having their expectations met by their current Property Management Company.

New Jersey is not a horrible state for investing it is more so certain towns and cities that give NJ a very bad name. 

Alternatively, explore a self-directed IRA to invest directly in real estate without triggering taxes or penalties.

Its a vacation town.