But for future references, my suggestion would be to contact some reputable property management companies in your local area, and see what they'll tell you about the crime clean up company(s) they've used. 

Im a newer wholesaler and I've been hearing(often) that in the near future RE investors will need a realestate license.

I'll be buying at historical high prices for the condos history and I feel the markets in a bubble and I won't be counting on appreciation, more likely to depreciate in the near future if the bubble bursts.2.)

In the future, if you want to ensure you get paid at closing, consider getting licensed (if you’re not already). 

Is there something that they're not disclosing that will hurt me in the future.

See you on future threads!

I'll have to sit down with the owner in the near future.

Due to the time value of money accelerated payments increase your yield as an investor (but more on that in a future deal).Let’s talk Note Investing!

Your biggest "investment" mistake at the time was: paying full market value.When you only rely on future appreciation, it's always going to a long, slow slog.Which is why I agree with @Scott Bowles urgent advice to you: Sell!

As many investors have echoed - NYC is a very expensive marketYou have the following options1) Investing in NYC - require large capital and a good choice if you are banking on appreciation in the future.2) Invest in upstate NY or CT/MA/PA/NJ3) Invest through a turnkey property4) Househack(may be difficult in NYC but doable in parts of NJHave you looked into attending any local real estate events in NYC?