Advice needed re:appraisal value

[Tyler Leonard]

HI I am new to BP and I recently graduated from college (May 2014) and quickly started investing in multi-families. I had some cash of my own and I quickly got up to 33 units. 

 I used private lenders to finance my properties and I am in the process of refinancing them with a local bank however the banker encouraged me to sell 1 of my properties as it is easier to refi with >5 properties.  

I have a buyer for one of my 4 families for 240K (I paid 190K and put in 2k to date) however I am nervous that it wont appraise for that much.  I have basically disrupted the comps in the local area by purchasing multi-families for such a deep discount but I fear that it could come back to haunt me if the appraiser cant find proper comps in the area. 

Is it possible to refinance the property with a commercial loan at 3.49% (rate from local bank) and then sell the 4 family to the buyer but hold the paper on 240K in order to avoid the appraisal process? Please provide me with feedback and/or suggestions.