I don't think a brokers license is required here in Kansas, where I live in order to manage properties. 

I have lots of cash now so no rush at all and current rate is 9% rehab loan on a tiny $155k balance so nothing too crazy. 

Careful - sometimes the notes for sale are the ones that lenders don't want on their balance sheets. 

Are the sellers requiring you to use your VA eligibility to assume the loan? 

Correct, many lenders require a 6 month seasoning period, but there are a growing number of lenders doing 90 days or less right now, especially if you can show that rehab has taken place.Are you currently looking for one in Detroit? 

Let me know if it is possible or not, and in both cases what would be the requirements? 

All the things they offer are services you can do yourself; email the cleaners, message the guests (which requires you give them your Airbnb login info), contact service providers if there's an issue, but not from a network of providers, just Google apparently.

As an agent, you can certainly still be an investor and look for land to buy, BUT your state likely has laws requiring you disclose that you are a licensee.

Drywall, and electrical work will probably require a permit. 

There are just some markets that don't require you to be that good.