If so, do you think buy and hold investing would be more or less cumbersome than using the SDIRA for other RE activity, (flipping, lending, etc), which seem to have their own concerns.....Unrelated Business Income Tax, self-employment tax.I'd appreciate any feedback on your recommendations as to how to best utilize these IRA funds within REI. 

Gross Scheduled Income: $12600Expenses (Maintenance, Management, Taxes, Insurance, Utilities (water & trash paid by owner), Landscaping, Common area electricity, CapEx, Vacancy, Internet for complex, security, etc.): $6400Debt Service (5.5%, 20yrs, 80% of cost): $3700Cashflow: $2500Annual COC: 17%I want to make sure I'm considering everything but also don't want to get stuck in analysis paralysis.

Things like interest and utilities can be deducted for 2015, talk to your CPA.

If in fact you can rent it out for $1025 and make your tenants pay the utilities, and your payment is $500-600 (I'm guessing), then it seems like it would it would cash flow well.

Also, I was in a similar process and walked away because of property lines and the headache involved BUT I contacted a pre-fab and they were like $90/sqft including everything except utility hookups.

- it's always good to see another Hoosier utilizing this great site!

Numbers are below.Monthly Rent Unit 1: $675 (hasn’t been raised in 15 years)Monthly Rent Unit 2: $995Monthly Rent Unit 3: $1,035Monthly Rent Unit 4 (my unit in which I rent out the bedroom): $650Total Monthly Rent = $3,355Monthly PITI = $2,862Monthly Utilities = $208So that leaves about $285 per month for repairs and other operating expenses.

.- it's always good to see another Hoosier utilizing this great site!

Should i invest to make each unit its own utility?

Maybe you can utilize that in some way?