But there has been appreciation since the property was first placed under contract, so I was thinking I could just turn around and resell it for a profit--maybe doing some light cosmetic work on the inside (e.g. remove fake wood paneling, paint, repair broken window)--since there are a ton of first time homebuyers who might jump at any habitable house for $200k, regardless of zoning.  

Control panel, base station and a few motion detectors. 

We'll get ahold of Centerpoint this week to get the gas meter moved and the electrician will start later in the week demo'ing out wiring and starting to pull new for the new layout as well as we are moving the panel.

We own the property with my father-in-law that has lived in the other side, and we split the 15 year fixed 50% with him.3,032 sqft total, each unit having 3br 2ba and full kitchensNet Zero home with a giant solar system and no gas (we only pay the $25 per month service fee for all our energy needs)2.25 acres backing a moderately traveled highway3,000 sqft detached heated workshop with a half-bath that can accommodate a motorhome Both parties will be moved from the property in about two months to different personal residences, and both parties are newbie and excited REI's.Our plan A was to sell the property (currently listed with a local REA on the MLS for $750,000 - many realtors have walked and said the property is priced spot-on) and use the cash to invest elsewhere.

On the ZNE - just make sure they can have an attractive PV system added to them and can be wired for solar.

Almost certainly you will need a new main panel change if it hasn't been updated but no need to rewire barring state regs.

I am here to research the possibility of investing in real estate properties to rent out and then putting in gray water, composting in the yard and solar power systems.

I have also had some big repairs like electric panel upgrades to accommodate the higher number and usage of electrical devices.

I could be wrong on this, but to my understanding if the work does not affect the square footage of the house nor the structural components, and is simply replacing a "like-for-like" type product (swapping out an old light fixture for a new one, but the are on the same circuit and panel,  permits would not be required. 

I recently spoke on a panel of Keller Williams Mega Agents and one of the other speaks summed up real estate sales like this: "Being a real estate agent is extremely easy but most agents make it extremely difficult.