They use various strategies, techniques, etc.  

This is also a technique almost similar like auction process.These days, almost everyone over here uses final date.

I need to decide to sell or hold and im wondering if anyone can reccomend the resources or techniques to research the things i mentioned?

Tom's methods and program is great, we subscribe to many of the same techniques but we do not attach to the Wealthability brand. 

I added the budget to my rental website (temporarily) so you can click it and it will enlarge enough to be able to see it Budget per 1 house This is the budget for the build (it does not include all other cost associated with the project like soft costs and the like).

Be a DON'T WANT-ER - always be willing and ready to walk if you can't get a good deal - And understand that you can always come back to that seller later and begin Second Stage NegotiationsAsk the 7 wordsAlways consider a subject to offerAlways ask for seller financingUse the Study Period Clause with right of possession to control properties without cashOffer seller participation - this is a great way to close dealsOffer something other cash - a note secured by your other equities, an unsecured note, a Principal only mortgage (using this technique you can offer more for the building since you are not paying interest - and as you know a direct reduction mortgage will pay off much faster.

.- Real Estate is an amazing tool, buy right and just do DSCR 0.9 and that's it keep it for forever- We are the sub 3% rate owner basically we're living for free paid by the US gov/lendersAgain both investment has its own techniques to mastery both skillsets, we can become Ninja in Stock or Sam Zell-like in Real Estate, the trick is to keep learning and educating ourselves.And I am not selling any class lolJust want to point out that if market crash tomorrow (other than 401k), it is okay, we can make money either way.

A common way to build a portfolio quickly is to use creative, out of the ordinary, purchasing techniques.

Some techniques that worked a decade ago no longer have the impact they did due to the number of people that are buying mass marketed lists and blasting out cards and letters that are machine written.  

There are more hoops you have to jump through with inspections, building techniques and building materials.