In those 65 years, you are welcome to lease out the building and make improvements (depending on what the ground lease says), and collect revenue.  

The Pro of buying turnkey- As the name suggests it's turnkey so not much for you to do accept collect your checks.  

It happens more than you think.If you're not having luck cold calling expireds, then set them up on a 3-step marketing campaign.I sent a postcard for the first step, home seller's guide along with a sales letter and testimonials from Angie's List and Zillow for the second step, and a mini trash can as the last step.Speaking of Angie's List, since you're new, be sure to create a free business account and start collecting reviews and you do business. 

The slight extra they are allowed to hold is to cover annual tax and insurance increases that they can't effectively predict and budget until that year's payments go out which is too late to collect them. 

(are you legally collecting a fee as an agent?)

I would maintain at least 50.1% control of the property, they would collect a 1-3% acquisition fee, and 1-3% on-going fee.Essentially, it should be a win-win for all parties involved.

Back in 1985 when I was single I sold my coin collection for the $7000 down I needed for a small $52,000 2-unit in Chicago's Wicker Park, through a realtor.  

If you can find something there that cash flows well, you'll never have problems filling vacancies or collecting rent.

If it is 100% vacant, there's a high probably it has been red tagged or deemed uninhabitable by the government agents and will require extensive and scrutinizing rehab under their very particular and money extorting eyes.

I could collectively use the information and mix formulas creating a true NO Money, No Credit, No Co-Signer, No-Experience and No Assets way.