My question is, how does the process then become for buying properties in your state LLCs?

Think long term, delay gratification, and buy the property you want to own the most 10 years from now.

Quote from @Jaesung Jun: @Jaesung JunYou don't provide nearly enough information for anyone to realistically offer valid suggestions to you.House hacking involves buying a multi-family house.  

I recently purchased my first investment property, a duplex, and am eventually planning on buying more when the time is right.

In it’s most basic definition Buy - Purchase a propertyRehab - Value-add with renovations and rehab things that need to be fixedRent - Find tenants to pay your mortgage (and maybe some cash flow)Refinance - Once the property’s value appreciates from rehab and reappraises for more than you purchased it for plus renos, you can use that gained equity to do a cash out refi.

Auto or manual on /off?

This is different than buying an existing location, with possibly an existing tenant, but the same demand premise.On the Urban office tenants moving to a suburban office space. 

I'm not saying that I favor this over buy and hold rental properties, but this seems to be a great solution for reinvesting an old self directed IRA that I have.

Look up Pace Morby and his groups, etc, they sometimes source homes that don't have as high of an entry fee as buying a home the normal way would. 

If you don't have enough money for a down payment, there is no way you should be buying a home.