Then, tenants use a mix of baseboards and space heaters to cover the rest on their own dime.On my last two rehabs, we've separated plumbing to the units so that we can pay a single city base charge, but then submeter the units down the road to do RUBS.We also tried, at one property, simply sending a group email each month sharing what our heat bill was and how that compared to the previous year.

@Greg Tomita Being inland in Eustis should help keep your rates reasonable compared to the rest of the country.

No unit or Townhouse Building there on shall be occupied and used except for single family residential purposes by the Owners, their tenants and social guests, and no trade or business shall be conducted therein, which impacts upon or involves the use of, the common areas"I don't see where it explicitly prohibits STRs, but don't want to get on the wrong foot with the HOA.

As @Jordan Moorhead said, not communicating what you are looking for makes you sound inexperienced.Don't just buy a property for networking purposes.

What were other purposes of the S-corp? 

If you will cash out later interest rate will be higher compare to regular purchase.

.: looking through MLS, contacting certain people, sending direct mails, etc.)What % does screening the MLS (+other websites such as Zillow, etc.) represent compared to other strategies you may use to find deals (such as direct marketing, etc.), both in terms of # of analyzed properties and # of purchased properties?

Also, a few hundred bucks a week is usually small compared to the grand scheme, but can be huge for those guys. 

I wrote the above for informational purposes.

Just to echo what @Russell Brazil posted, most people would be surprised (well, maybe they wouldn't, who knows) at the barrage of posts coming through every day solely for the purpose of selling you something or redirecting you somewhere to sell you something.