To the OP:
Pay attention to the color temperature mix of light. Window light can be 5500K direct sun, or 9000K skylight. Artificial light can be tungsten (2600K to 3200K), or LED (2700K, 3000K, 4500K, 4800K, 5600K, or 6500K) or fluorescent (2700K, 3100K, 3500K, 4100K, 5000K, 5500K, 5600K, or 6500K).
The point is to turn on sources that dominate the scene, and turn off different or conflicting color sources that don't dominate. Some real estate folks carry several flash units, plus a case of popular color temperatures of LED and Fluorescent lamps (2700K and 6500K). They may have various gels to use over their flash heads to correct the flash color to match 2700K tungsten or 4100K cool white fluorescent.
Sometimes, photographers will deliberately let tungsten lamps or 2700K CFL or LED lamps stay yellow/orange, for mood. Usually, they override most of their effect with bounce flash (off the ceiling).
If you attempt to match color temperatures (close counts), you can then bring everything back to neutral with a custom white balance at the camera, or a click white balance in post production, provided you use and photograph a proper white balance target. (If you don't have one, go to the B&H or Adorama web site and shop for "white balance tools".
Popular zooms for real estate work:
8-18mm or 7-14mm on Micro 4/3 cameras
10-22mm or 10-20mm on APS-C cameras
14-24 or 16-35mm on "full frame" cameras
Carry a tripod. Set it so the lens is placed half way from floor to ceiling, and aimed straight ahead. That will help keep your wide angle distortion in check (as much as possible).
Use a depth of field calculator on a smartphone until you learn which apertures work best in various circumstances for the depth of field you need.