I started to see in an influx of responders around the fourth touchpoint for each respective campaign.

Units 1 & 2, which are both 2br/1ba, previously rented for $1,450 and $1,300, respectively and I'm hoping with some TLC I can achieve $1,600+ for both - my broker thinks I can reach $1,800 - 1,900 but that seems a bit far fetched in this area, especially since I'll likely be listing them in October.  

Playing hardball with a tenant who has already proven she has no respect for your building is a very slippery slope, be careful. 

Plus, these tenants will be your future tenants, so you want to be respectful of their time and privacy.

Being a little specific, How likely it is to rent out a 4bd 2+ bath (1900sq feet) Vs a 5bd3bath(2500+ sq feet) considering the monthly rental for both ~1750$ and ~1950$ respectively.4.

@Robert NAI respectively disagree with Matt above.If you look in Solara, Solterra, Encore, Reunion and ChampionsGate to name a few, there are a good bit more than 2 or 3 homes for sale. 

A quick call to the correct respective office should get you an answer and peace of mind

WRT = With respect to. 

Trying to learn more and the best way to do that is by associating with people smarter than myself in this respective area. 

In addition, if you are self-employed with no full-time employees you may wish to consider opening a Solo 401k instead of a self-directed IRA as it has several advantages over an IRA LLC such as much higher contribution limits, direct checkbook control (i.e. no need to have the account at a specialty trust company), ability to take a 401k loan, exclusion from unrelated debt finance income tax with respect to investment in real estate acquired with non-recourse financing, etc.In addition, please note if you purchase debt-financed real estate with your IRA, unrelated debt finance income tax should apply to the income attributable to debt-financed real estate held by your IRA.