Self-directed IRA would be the route for you to pursue. 

The company intends to be the one on the lease and to provide the security and monthly payments while 3 of their employees live at my rental. 

I disagree that the 1065 would be the more complicated route.Relying on each owner to report, accurately, their share of rental activity on Schedule E, plus issuing 1098s to the parties not named in the mortgage would be more complicated and more prone to error, especially if it's being undertaken in a DIY manner..I concede a 1065 would be more expensive than DIY tenants in common, however it frees up the owners to pursue higher value activities and provides them greater assurance everything is being done as accurately as possible.If we want to say error is being mitigated by a tax pro doing the returns of the owners in a TIC situation, sure we can say and all agree to that, but IMO the compliance fees for a pro in this situation for all individuals would be higher than that of just engaging a pro for one 1065.

Finding a fixer upper can be the easiest way to gain appreciation.

I am looking to inject (contribute) some money into one of my LLC to finance some new acquisition this year.I am refinancing my home (that is under my own name) and will use the cash out as contribution into the LLC.It is my understanding that while you can't deduct new mortgage or refi anymore on your personal home, you can still deduct all its costs when it is used for investment (by deducting from the investment income/gain).What would be the proper way to document this transaction in addition to the schedule recording the contribution in the LLC book?

Maybe I am ignorant but it seems like starting by buying small rental properties would not be the best way to leverage my cash.  

I understand that you will never stop learning, but you could be the smartest person in the world and studied every subject there is, problem is if you never decide to use it what's it good for.

Well Im happy to be the one to educate you.

Nope; lenders consider the value of the property to be the lesser of the contract price or appraised value.On a refi, different story. 

I kind of thought that might be the answer.