I recommend checking market with great macros.2. 

I'd definitely recommend looking at Columbus Ohio!

Option 2: Electrician recommended mini splits - said 2 units should do the trick and would cost around $6-$7k.Heating system 2 is forced hot air oil furnace specifically for the 3rd unit.

I will be living in the guest house, while renting out the main.Both units are without washer and dryer units, my question is, do I supply them in the main house; or let potential tenants figure that one out?

build to rent is great. they are an intermediary that help investors contract direct with turn key new build. they are pretty sophisticated we have sold a house so far and we are looking to sell other multifamily with them. there is a vetting process and as an intermediary they don't control construction they help vet builders and establish relationships. they have a big team. the other builder I've never heard of but unless you can see your house I wouldn't touch it. rent to retirement has a strict policy of 90 days until certificate of occupancy until they will send a deal out they are good at what they do and I'd recommend them. they have options all over the country and established relationships.

My question to y'all good folks: Do you know of, or can you recommend, a company or brokerage that deals in property management in California that I could work for full-time and learn everything there is to know? 

I recommend people only sell if (a) you can invest the capital in something that performs better, or (b) it aligns with your goals.

Many people choose NOT to have this, because the administrator will then vet every investment you make to ensure you do not invalidate your IRA.Invalidating your IRA means that you've done a prohibited transaction and the entire account is then deemed as distributed to you.If you don't want checkbook control, then I recommend a plan administrator such as Equity Trust - www.trustetc.comIf you are sure that you're aware of all the rules around prohibited transactions and disqualified people (who you can and can't do business with), then a plan administrator like Sense Financial would be a good place to start talking.  

Thanks for the recommendation.

I would also recommend increasing your liability coverage to at least $2M.