I have found that I get more appreciation on the single family house because I can sell it to an investor or as a primary residence.

Hey Khaled, I have a PM who focuses on multi-family and has high praise from my clients.

Hi Dana, my family has enjoyed staying in nearby Twain Harte, and Long Barn.  

Red Bank is opposed to multi family which is odd given the concentration of it within the city. 

I avoid the multi-family market here, so unfortunately, I will not be a good go-to here, but I am confident you will find quality resources and help here on BP.  

This one is Multi-family in Celebration Florida known as Astoria.

That would be a helpful addition to your plan as you would further reduce your cost of living.Also don’t forget from that $600 you are planning on getting in cash flow you have taxes, insurance, maintenance, capex, and vacancy to consider.With two homes, you may want to keep that extra $20k as an emergency fund rather than spending it on a third property and then be left with no emergency funds.

I have a single family house (primary residence) and am wondering the pros and cons of selling to a builder?

I purchased a 3 family in Newark NJ in March of this year, and am curious about looking into this form of insurance as a way to further protect myself. 

I can do financial modeling with you and talk to other new build investors it's a slow growth plan. build directly at 25% below the market and also identify land too. increase unit counts and get better economies of scale. single family homes will never perform like a three story walk up apartment. we build a stacked triplex in Columbus Ohio with a picture below, if you are set on Dallas look at land prices and see if the economics help.