Payment may not be made by third party checks.

I think the only two issues that I think about as I contemplate signing on are the speed with which they have been growing, and the fact that they are just now moving to being vertically integrated -- their property management and renovation teams are all in-house now -- not 3rd party like they used to be.

A realtor that you are wanting needs to be new and fresh enough to the have energy and willpower to work their a#$ off, but also have some experience and education to bring to the party. 

In general, the major brokerages are somewhat greedy and they would prefer to keep both sides of the commission "in house", so before any new listing is posted to a site like LoopNet, Costar or Crexi, it is passed internally to every other broker in the office and then within the intranet for that company, to see if anyone has a party to do the deal with.

The seller will still be responsible for paying taxes on the interest income they receive, and when the principal is eventually paid, there may be tax implications for both parties, depending on how the deal is structured.

Do you mean a loan from your own 401k for you to personally buy real estate or using your 401k to loan to a third party to buy real estate? 

I'm pretty sure you can do BOI filings for free on the FinCen site.However, our CPA recommends possibly using a third-party service because many of them may make changes/updates (e.g., your address changes) easier. 

In other words, when the association responds that a certain amount is due, it is “estopped” from later claiming some other amount is due, because the parties have relied upon the numbers provided

And that's the exact scenario here.If you search BP you will find many examples supporting the position that an investor should never allow a party facing foreclosure, default, distress to remain in a property after settlement.

If I advertise my unit on the open market for $1500 per month and a section 8 tenant is interested and gives me their packet and I fill out the packet stating the rent I am charging is $1500, there is no surprise side deal because all parties are aware of the rent I am charging.