@An Duong, good questions! I like to think in terms of best and worst case scenario. Consider what you will want to know about how the PM will lower your expenses, AND what they will do to protect your investment if you have tenant issues.
1. Does PM have a full time rehab/maintenance team or do they outsource/hire subs?
I would want a full time team, this will lower your expenses and shorten the amount of time it takes for work to get done.
2. Does PM have in house attorney and accountant?
3. How does PM handle collections and do they have a collection department?
When I am investing out of state, I want a one stop shop. I don't want to have to hunt down subs or find an attorney out of state in the case of eviction, etc. I know some investors prefer smaller PM companies, but I want the economies of scale in my favor because the PM will be more likely to offer different services all under the same roof and have professionals to save you money and care for all of the needs for your investment.