The idea of bandit signs that @Jose Flores suggested can work too although I've done bandit signs to market for sellers (usually in weekend campaigns for a variety reasons) and only get a handful of calls.Lastly, since you're likely already driving around a bit in your day job, driving for dollars in the neighborhoods you patrol might not be a bad idea.

Fair warning - there is a distinct difference in protection between single and multi-member LLCs in a variety of jurisdictions, so make sure you understand what you'll be protected against and what risks are still there. 

There are tremendous variety of properties and opportunities from flipping to vacation rentals on the beaches of the Gulf and Mobile Bay.

Designers come in a wide variety of prices.  

I am starting to assess MF properties for a next investment and I'm exploring a variety of building sizes based on the neighborhood.What are the main financing differences with a 5+ unit building (i.e.

With the vast variety of RE investing choices out there, one of them is probably going to be right up your alley.  

But we also have the untamed variety of squatter who uses houses as toilets, set open fires on hardwood floors, tear out all the metal to sell for drugs...these people will set a house or building ablaze causing terrible damage and harm to people.

I have much more control to drive value in a more variety of markets.

I've used a variety of deal analysis calculators and many of them include CapEx estimates/reserves in the 'Expenses' category, like this:Income - Expenses (including CapEx estimates) = NOIBut shouldn't CapEx estimates/reserves be factored in after NOI is calculated?

As Jason points out, for 5-unit + purchase you'd need a commercial loan (vs. conventional), and so you could expect higher rates and probably not the fixed 30 year variety, and this could further hinder your cash flow.