Even if you increase that 2nd unit from $750 to $1000, doesn't seem to cash flow that great after maintenance/vacancy (i used 15% in my modeling).my 2 cents. good luck! 

So my expectation is that went a loan comes due, I'll have the funds to pay it off in full, and if I do not or would rather not - I shouldn't have any problems refinancing with the same or alternate lender.Plus, if the property has appriciation during those 10 years or is a 5-Unit (or more) multi-family that has been maintained and managed well (increasing rents), it should be worth far more than owe'd, further making it easy to refi.

Renovations are being done and rents expected to increase to $1500-1700.

I am considering increasing my home insurance deductible from $1500K to $4000K.

You could possibly AirBnB the bottom floor and increase the monthly income.

Filling out a rent increase notice is probably the easiest.Seriously though...

With a new (bigger) loan and increased mortgage payment will it still provide acceptable Cash Flow?  

More traditional things I would suggest, billing back utilities, charging for pets, upgraded finishes to increase rents, charging fees for things like storage or extra parking.Authors I would suggest Ken Mcelroy and Dave Lindahl.

There is just a little less room for error when dealing with a smaller park as you don't have as many lot to absorb a vacancy or an increase in water usage(even if you can collect)..or some repairs to do etc.Good job on negotiating them down so far...for me i will still have to go lower and look something like this....200*18*12*.5/.1=216k purchase priceI prefer to pay lower than this based on a smaller park and limited upside potential based on your observation of market lot rents.  

Before you purchase a property, I would suggest going to your bank and applying for an increase in your credit card and line of credit limits (don't use them, just have more space available).