Financing sellers can be exempt from these rules, however, if certain criteria are met.

For the following reasons:Significantly higher contributions limit (up to $59,000 for 2015)Tax-free investing using Roth sub-account of the Solo 401kAccess funds in your 401k tax-free and penalties-free before you retire via participant loan featureLeveraged real estate exempt from UDFI taxesTruly self-directed Solo 401k is very cost effective - no transaction or asset based fees that you would pay to the custodian with an IRACheckbook control, you don't have to go through third-party administrator or custodian to make investments or transactions You can read details on one of my blog posts at the following link:https://www.biggerpockets.com/blogs/2810/blog_post...Hope this helps.

Section 1031 is only for investment properties.Section 121 is for your personal residence and you have to have lived in the house for 2 of the last 5 years, then the $250,000/$500,000 exemption is available. 

There is a limit to how much it can rise annually if you have a homestead exemption but, for a rental you won't get that.

This can be anywhere between 15% and 39.6%.The tax applies to the percentage of the income derived from the non-IRA capital.So if you bought a property worth $100K with $40K down from the IRA and $60K borrowed, then 60% of the income is looked at by the tax.You then apply 60% of all the normally allowable deductions to reduce that income, interest on the note, depreciation, property taxes, etc.There is a $1000 exemption applied.The net taxable income is then run though the tax table.With that $100K property that is 60% debit financed, assuming a 10% return, your tax bill at the end of the year would be about $175-$200 depending on factors such as the interest on the note, operating expenses, etc.

Technically, you as the owner are exempt from rent control after living in the building for 1 year continuously.

. :) Actually, when the children sell, they might do so as executors of the estate - and executors are exempt from having to disclose (at least at this time). 

@Dennis WeberOne can make a direct distribution from an IRA to a charity, but it is only tax-exempted as a "Qualified Charitable Distribution" if you are over age 70 1/2 and therefore subject to Required Minimum Distributions from the IRA.Otherwise, you can take a distribution to yourself, which it taxed as income, then contribute it to a qualified charity or non-profit, which gives you a write off.It would be best to consult with your CPA on this topic.https://www.irs.gov/retirement-plans/retirement-pl...

Florida law exempts individuals from licensing if they are making the loans for their own benefit and do not hold themselves out to the public as a mortgage lending company.

Also, if you sell and do not 1031 exchange/have an exemption from living there you're looking at a hefty tax bill.One final point, you know that property pretty well at this point so you have a good idea of potential future capex repair costs so it's a known investment.If it were me I would hold that all day long and get an equity line to keep investing.