These gains in home sales activity are being driven by pure demand."

Historical is the absorption rate that has taken place.Forecast is a prediction based on the historical absorption and current/anticipated economic trends.Absorption rate for a year would be calculated  - number of total sales in a year divided by twelve = monthly absorption rate in prior year (average for the year).Current months of housing supply is calculated - number of active listings divided by the monthly absorption rate - total number of months the current supply should lastSo, 120 sales in the prior year gives you a monthly absorption rate of 10 (120/12).30 active listings would give you a three month supply (30/10).A three month supply in most markets would be considered the borderline of balanced and shortage.

If you are flipping houses on regular basis, this activity would qualify you for a Truly self-directed Solo 401k plan, which has number of advantages over SDIRA, you then should investigate this route. 

Is your rental actively on the market or under contract to sell? 

The management of vacation or short term rentals tends to gravitate toward the active business side of the equation and that is the real problem with you taking on that level of involvement for your IRA or 401k.

Ohio has issued some HUGE fines for unlicensed activity.

Our long-term goal is to build our dream-home in 5 years and live comfortably with a single active income and small portfolio of passive income.

If you are offering an investment opportunity to others, you will, of course, want to work with an advisor to walk you through any federal or state rules regarding such activity (e.g. securities regulations).

Twitter and any other social media platform represents the future of advertising and client engagement and we are increasing our social media activity every day. 

@Chris MartinFirst, I presume that (i) you are referring to w-2 wages earned from your self-employment activity (e.g. you have a single-member LLC taxed as an S-corporation through which you are providing goods and/or services); and (ii) you do not have any full-time w-2 employees (i.e. working 1000 hours or more per year) working for the self-employed business or otherwise.