I am now leaving the company and am going to roll my 401k into a tradition pre-tax IRA and then a self direct post tax Roth IRA.

I'd put the 20% down and finance the rest through a traditional 30 year mortgage.

Are there any big similarities or differences compared residential BRRRRing? 

Is there any disadvantage to have land trust compared to LLC?

@Marc Padilla If Jax is your area of focus, I'd definitely recommend joining JaxREIM on meetup (more of a marketplace where wholesalers and investors message each other) and also check out the JaxREIA website - that is more of a traditional REIA with regular local meetings and education - and time a visit to JAX around one of their meetings.Welcome to BP!

Hi Ivy,I'd be happy to talk with you about traditional lending!

If it were my property, unless I wanted to do it for philanthropic reasons, I would look at the cost of the solar roof vs. traditional roof, the benefits, and the payback before I proceeded. 

Any sort of non-conforming use carries greater risk than if you're in conformance.Duplexes and SFRs are appraised in the same way - comparable sales. 

Although there is still a down payment, it’s very small compared to other mortgages.

The former 1031 exchanged the fourplex into something closer to her new residence; the latter, got a no hustle, yet good investment (as compared to everything else on MB).