I recommend focusing on getting a great investment property and disregarding Section 8 in that pursuit because any property can be a Section 8 property, but a lousy investment is lousy regardless of having a Section 8 tenant or not.Section 8 will perform a basic functional and safety inspection for your units after you have an agreement with a Section 8 tenant and your local housing authority.

This has a lot of administrative overhead, the LLCs being disregarded entities may pierce the corporate veil.

If entities are disregarded, you can keep up with more than 1 in a single QBO account using the location/business feature to keep track of them separately.

Otherwise, since you're not doing actual business in the state the LLC is based out of, the entity can disregard.

@Lilly Fang, to echo Gregory's answer, a sole-member LLC is a disregarded entity from tax purposes, so no tax benefits or added costs in my experience.  

If entities are disregarded, you can keep up with more than 1 in a single QBO account using the location/business feature to keep track of them separately.

An LLC on its own is not going to accomplish your goals as the CRA considers LLC's to be "disregarded entities".

If that is the case, this will be treated as a disregarded entity so no real tax separation or tax benefits I am aware of.

But for me the complexity of getting out of an S corp plus the cost of running one just didn't make sense when I could eliminate net income so many other ways and still get the pass through from disregarded or series LLCs. 

I believe the IRS will consider the LLC as a pass-through disregarded entity.