I don't think the HOA can restrict what a tenant does within their own unit (the lease can), they can prevent activities in common areas.

Being above four units, fairly common for the accepted offer needed before showings.

It’s a common practice and I’ve never had any opposition to this provision.If you don’t have an operating company, you could get into contract in your own name and then assign it.  

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These are done between the buyer (you) and Seller.The situation that is most common to find these properties are in a foreclosure proceeding, or pre-foreclosure. 

The 1031 exchange was done as a group irrespective of, and including the SDIRA status, as a tenant-in-common. 

I have heard that it is common practice that private money lenders collect a monthly fee thru various methods, I'm trying to determine what those methods are.   

As a result, price gouging has become a common issue.

Very common.

Its a fairly common strategy.