Meet with a local banker & schedule a time to talk with a mortgage broker, they'll give you at least a baseline of what kind of down payment options and rates are out there.After that, if you're still wanting to research more creative options, do some looking into seller financing (a very hot topic with good, and bad, advice out there), look into private lenders, and commercial financing options.If you're wanting to live in 1/4 of your quadplex, then conventional residential loans may in fact be your best option as you can purchase that with a fannie/freddy loan with very low down, and use up to 75% of the income from the property toward your own income. 

Do you need license like you need to become a conventional loan broker aka originator (I happen to be one, licensed in NY and NJ).

I have 9 loans currently so looking to do a conventional loan on my next depending on that process.

-are you buying with conventional or DSCR financing? 

Conventional 20% down.

If you buy in your name you can buy them with conventional loans as long as you qualify which have better loan termsIf it makes any difference and will better guide your answers, we live in Ohio.Nice.

If you plan in getting conventional financing, they will not allow you to use the LLC.

That means, no conventional loans, bank loans, DSCR loans.  

If you're not using Hard Money and the property won't qualify for conventional financing, then you'd probably need to locate private money or if you have friends with IRAs, they can be self-directed to invest in real estate.

If the property is uninhabitable you won't be able to get conventional financing (through a bank) on it.