Frame out the wall and use plywood for the siding. 

Evan Hiller was quoted in the Wall Street Journal article about the Nightingale/Crowdstreet deal debacle:https://www.riggsdavie.com/team/evan-c-hiller

did half the flip work, sold with new walls and new electric/plumbing.

Install low profile LED lights or wall sconces.If this is an investment property you need to be thinking about returns.

I'm currently renovating my rear unit and it has the perfect layout to split into 2 units by adding a wall and an additional front door.

It's not fully closed as in drywall, it's sort of a faux wall on our side, but the tenant could open the door on his side and come through if he wanted.

I am an aspiring serial house hacker based in southern New Hampshire actively searching for my second small multifamily deal in the Nashua area, but I've hit a wall with inventory being so tight in my local market.

Electric: is the easiest to split, but may require holes cut in walls to separate the units.Gas: gas lines aren't as flexible as wires, but it can usually be done affordably.Water: most cities will NOT install additional water meters on a property.

It's not to say I don't get sick and tired of stuff, but if it is worth it, I will continue to bang my head against the wall.

Glazing in walls, enclosures or fences containing or facing hot tubs, spas, whirlpools, saunas, steam rooms, bathtubs, showers and indoor or outdoor swimming pools where the bottom exposed edge of the glazing is less than 60 inches (1524 mm) measured vertically above any standing or walking surface shall be considered to be a hazardous location.