Pros
Because the company is so small, every office employee gets experience doing a wide variety of tasks. This wide-ranging experience is especially helpful for new college graduates who are just starting out in the business world and need to get their feet wet in the general practices of how a business is run. This is a great job for a resume booster because of all the different experiences you will gain.
Cons
The owner of the company is a terrible person. She continually makes inappropriate remarks to her staff. I personally overheard her making bigoted and racially insensitive remarks on a number of occasions (for example "Asian people always have the dirtiest kitchens.") She does not care about her employees or her tenants whatsoever. Her main goal is to make as much money as possible regardless of morals, ethics, or just basic business practices. All employees are micromanaged to the extreme. Employees are expected to email a list of everything they did each day to the owner so she can determine if you worked hard enough and accomplished enough each day. She requests that she is BCC'd on every single email that is sent by employees. There is absolutely no autonomy to make your own informed decisions. She will often have maintenance workers work on projects at her personal home rather than having them work on time-sensitive tenant issues. The company is constantly understaffed because the owner does not want to spend money on employee salaries. Even with 6 different properties to manage, she refuses to hire a snow removal company to do anything more than just plow the parking lots. All other snow removal activities are expected to be handled by the small full-time staff of 4 to 5 people including shoveling sidewalks and dealing with ice. There is no work/life balance when you work here. Most employees work at least one weekend day as part of their normal schedule. The office is open 365 days each year so someone is in the office every holiday. All employees are expected to rotate being "on call" for tenant issues for a few months each year. Even if you have absolutely no plumbing experience, you are expected to handle plumbing emergencies when they come up when you're on call. For example, if a hot water heater is broken or leaking, you are expected to handle the situation in the middle of the night. Terrible place to work and the absolute worst part is the complete lack of ethics demonstrated by the owner.