Time to have a serious discussion with your PM and put some reporting standards in place to ensure that your property and reputation as a real estate investor is well represented and protected.Best...

I disclose that I am a realtor who also wears another "hat" as a real estate investor and ensure that I disclose which "hat" I am wearing in that particular time.

What are some important things I should know about this place to ensure its worth investing in?

But that does mean being a sophisticated investor & doing everything you can prior to offer acceptance to ensure you close the deal.  

I was seduced by a real estate guru into attending courses costing thousands of dollars, at which point I realized the value of money and that there were better, more dollar efficient ways to learn what they were teaching.

With that being said, these are high quality energy efficient windows that were purchased and installed about 5 yrs ago and qualified for a rebate.

When it comes to residential (1-4 units) and small multi-family (5-10) we typically purchase distressed properties and perform a deep energy retrofit, with the result being units which operate 40 - 75% more energy efficient following the retrofit.While this does not necessarily increase the rent we can command, it has proved to decrease our turnover and vacancy - tenants stay longer and, when they leave, we often have word-of-mouth applicants before the unit becomes vacant ... just last month we had 5 inquiries and 3-applicants on a property we had yet to advertise.

A lot of turnkey companies provide reduced risk, eliminate challenges, and ensure success by educating and guiding the investors through every step of the entire process.  

Not only will the accountant ensure that you file correctly, they also know of the potential write-offs, shields, etc. involved in real estate transactions.Good job keeping your receipts for expenses, that's important.

Depending on how much you plan on paying them for any finders fee once you close a deal, it might be more worthwhile and cost efficient to just pay $50 for any property they bring you that you either confirm is vacant or pursue for purchase.