I've looked into what would be required and come up short.Since I don't know all the individuals involved, and they're not accredited investors, I've read I would have to file with the SEC if I wanted to lead this LP.  

Tax lien investing requires due diligence on the persons part who intend a to use it aquire properties, if you win the bid on the lien you will become the lien holder which may make it to where you will be liable for the property taxes on the house so yes there’s risk involved.

We had to raise our liability on each policy while that was all going on, and it turned out it actually isn't that expensive to do so, and a better alternative than having to obtain more expensive financing to put it in an LLC which may not offer the protection you think, especially if you are directly involved in managing the property yourself.

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.