A duplex blows away a SFH as a pure investment and house hack opportunity.This is an INVESTOR's website.  

I’d love to get this group’s thoughts on what to do with 3 acres of undeveloped land (no septic, no water) in the Texas Hill Country that I plan to eventually pass on to my children (read: never sell because it’s family land).

Never go under water.

really the only thing in common with them is the homes are Mobile.MHP much easier to manage day to day.RV park lots of management issues also with RV the chems in the RV's are strong and it can affect how you deal with Grey water and sewage.. many RV parks though turn into MHP if the authorities just let the RVS stay and never move..

Even though calue in duplex to quad is based on comps, this is not purely true if the rents are far below market rent.  

Properties, for novices, which look good on paper and have good cash flow usually come with C to D+ areas, risky tenants, and a lot of cap ex that you can't see on the internet (basements, roofs, water issues, outdated mechanicals).You are turning a terrible loss into a springboard which is great, but you are trying to move too quickly it sounds like.

From that point on, I was always looking at Zillow and Trulia just for the pure enjoyment it brought me.One gloomy day when I was 16, I was cleaning around the house when I stumbled across the Master Passive Income Podcast by Dustin Heiner.

Do you have insurance for your appliances, if the tenant says the washer stopped draining the water and now their clothes smell like mildew, do you know how to schedule service with warranty or call an appliance tech?

Like do some cleaning job, contacting maintenance people, knowing how to pay water bills etc. these are all the basic work when you become a landlord and you need to know how to manage your property first.

Near outdoor activities, good food and some kind of water.