You need to create a scope of work for the buyer with time hacks built in. 

I'm one of the most visible people on the site, so many of the messages come from me.The forms you were offered are a package that we have created with the help of state-specific attorneys so that newer landlords who do need them can have a good set of documents rather than the "free" forms available online that do little to nothing to protect their interests.

I would think you could still do it as an all-inclusive note and trust Deed or as a subject to or create a second mortgage to go behind the current financing.

Each property should be 100% self-sustaining.

Real estate markets that have home prices doubling in less than 5 years are not sustainable. 

Also was wondering if I should wait till I have more rental income to create an Llc.

I think this would create too much competition.

It'd take a sizeable portfolio to match my income/benefits and it's going to be difficult to get funding to create that with out the steady income from corporate job.

If you can make a profit on flipping it, or create some positive cash flow through renting it, I say go for it.

Realistically you will be looking at 150 doors to sustain a reasonably guaranteed income of that level.