This cash would not be taxable.2.

As a result and from a tax planning perspective, individuals will process partial Rothconversions each year and higher amounts in years that they don't have high earned income earnings because the amount converted from the IRA to the Roth IRA is included in your taxable income for the year of Roth conversion.

The current appraised market value of the property at the time of distribution would be taxable income to you.  

Does all the cashflow return  back into the IRA and will I have to pay taxes on the cash flow taxable within the year it is generated or not until i take it out? 

A personal guarantee of the retirement account owner for debt taken on by the account is an "extension of credit" and is a prohibited transaction.Real estate debt financing within an IRA will result in UDFI, which will be taxable income to the IRA.

Deducting expenses only reduces your taxable income.

You don't need one LLC per, though some folks do it that way for asset protection.Remember that all such business-related expenses should be fully deductible against taxable income.

Taxable value right now is about $2,300,000-Loan:  Full recourse 75% LTV (including 75% of $450,000 rehab budget), 5 yr term, 25 year amortization, 4.5% interest with interest only year 1-Age: 1968-Individual HVAC and Hot water heaters-9 down units have been "down" since 2007!!

@Daniel DietzYour analysis is in the right direction, but not quite there.1) Determine the debt financing ratio - in this case .602) 60% of the gross income is then looked at by UDFI3) 60% of all deductible expenses are applied, so 60% of straight-line depreciation, 60% of the interest on the note, 60% of property taxes, etc.4) $1000 exemption applies5) The net amount after deductions and exemptions is then taxable to the IRA, and the trust tax table is used to determine the tax amount.Even if you have a negative UDFI liability, it can be worth filing the 990-T in case you can carry that loss forward to future years.We have a UDFI calculator on our website and if you PM me, I can send a link to you (BP does not want me posting that outside content on their forums).

If you prefer to lower your taxable income in that year, put it in the retirement account and use it there.