First, review the certificate of occupancy. This will tell you what you are legally allowed to use the building for (an office space, a residence, a gym, etc.) Then, research whether there are any existing violations on the property. Review the space with an architect or contractor, and check for unpermitted work. Also review the structural, mechanical, electrical, and plumbing work. Will you be able to move walls? Can the current flooring support your business use? Make sure the building’s envelope–the windows, doors, and roof–are in good working condition. Consider people with disabilities. Is there a way for wheelchair users to enter the building? Lastly, understand your facility requirements, the most common of these being bathrooms based on the number of patrons your property can hold.