Typically you can't use the CC funds to fund the downpayment of a conventional loan. 

@J Shoe I will start by saying consult with a personal attorney and CPA (and have them work together.)Typically people buy in an LLC just to keep their name off the record and for asset protection and operation agreements.As a sole investor a lot of people will buy in their personal name so they can more easily obtain quality financing, and then move the asset into the LLC.A lot of people of California use trusts (DSTs) to hold the asset, so they are not contributing to the problem of over taxation in CA, as CA has a franchise filing fee of $800 every year for each LLC.Just some things to think about, but find the professionals that can tailor a system for you personally.Cheers

I own a 1 bedroom cabin worth $615k on paper and it's only 900 sqft.

Typically, any income generated from the property should flow back into the retirement account and be reinvested.2.Generally, your property management company can manage the apartment complex owned by your self-directed 401(k).

:Class A Properties:Cashflow vs Appreciation: Typically, 3-5 years for positive cashflow, but you get highest relative rent & value appreciation.Vacancy Est: Historically 10%, 5% the more recent norm.Tenant Pool: Majority will have FICO scores of 680+, zero evictions in last 7 years.Class B Properties:Cashflow vs Appreciation: Typically, decent amount of relative rent & value appreciation.Vacancy Est: Historically 10%, 5% should be applied only if proper research done to support.Tenant Pool: Majority will have FICO scores of 620-680, some blemishes, but should have no evictions in last 5 yearsClass C Properties:Cashflow vs Appreciation: Typically, high cashflow and at the lower end of relative rent & value appreciation.

is it worth it?

Not for the faint of heart, but it's absolutely worth it.

Not worth it from a cash flow perspective, and most of the investors I work with also avoid condos for the same reason! 

Realtors exist for a reason and the good ones are worth their weight in gold] 

If that makes it worth it for you I would suggest to go for it!