I could just put it all on a credit card and try to pay it off over the next few months with my personal savings, but I could also try to either borrow or add it on to the purchase price.

An additional vetting by them may go long way in establishing a good team for the long haul.

It took an additional 4 months to close and the seller ended up spending $25,000 in legal fees to clear the title.I'd get the advice of a real estate attorney. 

@Steeve Breton from my understanding, once there is a non-accredited investor in a 506b deal, there are a few additional pieces of self-verification information that the Sponsor must collect, and once they have to collect if from NA folks, they must collect it from ALL.

If I were to remodel it, in to two additional units would I need to notify the bank? 

The principal balance is what he’s paying for not having the 1 million up front + he has to come up with the 90% (because he out 10% down) so an additional monthly payment is required to eventually pay off park purchase. 

Happy to help with additional input or get on the phone if that helps.  

Features offered (some just offer lists/data, others offer additional tools)6.

Additionally, I would make sure you still have a mortgage contingency clause in the contract in case the funding falls through. 

For single family I would look in Bergen County zoned for good schools, something that needs work and you can force appreciation through reno or addition.