During the 70's and 80's my uncles were huge players in Center City, Philly.

Bottom line though is that if you haven't had even one offer, than the price is so overpriced that buyers don't even want to bother trying to get in a negotiation because they consider the price to be that far off.  

It takes a strong conductor to direct all of these players and instruments in harmony.

This is all theoretical and I wouldn't bother with such a scenario.

You spend $50 on business cards and the other $50 on gas for your car so you can attend all the real estate investors meeting or meetups in your area.By networking, you will get to know the players in your market and you can play "matchmaker" (i.e., wholesaler) by finding a property from a tired landlord, then wholesaling it to an aggressive landlord who is in expansion mode.

(Why bother asking:  Is this a part-time job or a career? 

New builder developments have sprouted up and are being built faster than I can keep track of, mostly single family homes starting at $300k and mostly on parcels of at least 10-15 acres, they don't bother with smaller neighborhoods. 

In my area, there was a slumlord ring during the pre-2008 boom that bought and sold hundreds of properties first to locals, and then to foreign investors, many of them multiple times over.Dov Ratchkauskas and George Kubini were the main players -- they're each doing five years in federal prison now. 

My first tenant ever was a disabled lady which did not bother to pay rent so I had to pay a lot to an attorney who is not able to find her as she disappeared.

There’s no way I would bother amending my taxes when your answer was probably closer to correct than the new property value.