Ensure the drywall meets fire safety standards and doesn't contain hazardous materials.

Fire-Rated Drywall: In areas requiring fire resistance (e.g., walls separating a garage from the living space), ensure the drywall meets the required fire rating.

Chinese Drywall: Be aware of the potential for problematic Chinese drywall (imported between 2004 and 2007), which can emit sulfurous gases and cause corrosion and health issues.

Consider the aesthetic impact of the drywall.

Smooth Walls: Buyers typically prefer smooth walls. If the walls have significant imperfections or undesirable textures, skim coating or replacing the drywall might be necessary.

Seams and Finishing: Inspect the quality of the drywall finishing. Are the seams and joints well-concealed? Poorly finished drywall can detract from the overall appearance.

Neighborhood Standards: Compare the quality of the drywall finishes to those in comparable properties. Are other flippers investing in high-quality drywall finishing to achieve a more modern look?

Evaluate the condition of the drywall throughout the property.

Drywall vs. Plaster: Determine if the walls are drywall or plaster. Plaster is more common in older homes and can be more expensive to repair or replace.

Damage: Look for holes, cracks, dents, or other damage that will need patching or repair. Pay close attention to areas around doors and windows.

Water Damage: Identify any signs of water damage, such as stains, discoloration, or bubbling. This may require replacing the drywall and addressing the source of the moisture.

Texture: Assess the texture of the walls and ceilings. Are there undesirable textures (e.g., popcorn ceilings) that need to be removed or skim coated?