If you are looking to invest in 5 units or up, it's a more involved process but the first step is still getting pre-qualified.

(which I don't think she is) It would also add a ton of extra closing costs that wouldn't have been involved when whole-selling.

The only thing that changes is that 5 units and above is considered a commercial property and the financing process is more involved.

Remember with commercial units / loans there will be a lot of extra fees involved: two closings, maybe two appraisals ($1600 for a 5 unit that I did recently), permits, inspections etc.  

A buy and hold business plan isn't even remotely relevant to a flipping business plan - unless your strategy is to be involved in both.Define your strategy, then begin the construction of your business plan.

I'm thinking about getting involved in real estate investing.

I understand how the HML lender would be on title, that there are points and higher interest involved, etc, etc.  

If he lives in Detroit, and is getting involved with the community, then he has a better chance than most people Looking at Detroit from afar.

If you don't like being a Landlord find a different job that doesn't involve people.A Lease is good protection for both parties.

Lastly, try to get involved in the Bigger Pockets community.