They usually have websites where you can monitor how much inventory they have and what they are charging for rent.I keep tabs that way in my town and right now we are at multi-decade low vacancies.

If they move, you can renovate and charge market rate.

If I provide cable for 3-units, with the cost of 1-home, I figure I can create cashflow by charging my tenants a discount from the cable company.  

I would suggest purchasing a great deal versus any old opportunity.Avoid individuals who are over charging for their properties and maybe consider the Virginia / Indiana or Ohio markets. 

Hilarious...but atleast they 'tabled' my 'dangerous' building for a little bit, I got a lot of work to do on that place, sometimes I wonder did I do right getting into Muskegon, like Mark Elliot said, after I bought my property there, then I've also heard stories about Muskegon officials being corrupt, but I'm still wondering are they corrupt or just looking out for their city...but this is the 1st city that I got a notice for lawn care, that if I didn't get it done, they would charge me $90/hr, and I was like wow!!

but, they do not owe the tax to the county anymore, they owe it to you, and you can and should charge them intrest on the money. usually they have a year to redeem the house, after that, its yours. the issue there is that you can't do a damn thing to it for a year. these issues are what we mean when we say, " do your homework". tax sales can be a great source, but you still have to know what you are getting into before you get into it. 

Plus I can charge more rent after its all remodeled which should be done in about 3 weeks.

He fixed both issues and only charged for filing fees.I highly recommend him.Thanks Jeff V

Generally, reputable, qualified and experienced exchange companies will charge somewhere between $5,000 and $8,000 for a standard Reverse 1031 Exchange. 

They seem like a good investment until a special assessment comes along, and tries to charge you 10,000 to fix the foundation of the building.