.- You already engaged an architect, which is the first thing I would do.

I must warn a  novice about engaging with someone who would actually post that there was a relevance, express or implied.

Also if your still here in 3 years you didn't engage on the REI side of things.  

While sellers or wholesalers may sometimes dictate the title company, having your preferred option ready can be advantageous.To vet potential team members, engage in conversations and assess their responsiveness.

I've been sitting in this position for some time and I'm ready to re-engage with the market. 

for the FWIW file and congrats on selling your bizz thats a nice payday.most of the folks I have done bizz with over the years that are very liquid will buy as high end of rentals as they can  IE A class and put professional management in there. many states require on site manager over a certain amount of units as well.. so the PM is really managing this employee that is mandatory for you to have.. this could work well for you you manage the on site manager let them do the dirty work and you stay engaged and gives you something to do.. good luck with it..

There are a number of guidelines the IRS has for performing a proper cost segregation study (which will pass in the event of an audit) Here is the link to that list on the IRS website:Cost Segregation Audit Technique Guide - Chapter 4 - Principal Elements of a Quality Cost Segregation Study and ReportI have never seen a DIY before, but I'm sure people do it.Depending on the size and type of your property the fee for engaging a qualified engineer-based firm to conduct the study can be as low as $3,000 (lower in certain cases), and the significant benefit created well outweighs the minimal costs.

For illustration purposes perhaps that technique would be more accepted when you are a vendor mowing a lawn or clearing out junk as a one time engagement but as a property manager there are significantly more pitfalls and potential instances of liability exposure.

Does posting on these forums lead to business engagements for myself? 

I don't seem to get the same engagement I used to on FB and IG.