hi @Vladimir Gonzalez  - generally speaking you can look online at the county clerk  records in the county which the property is located if you know the owners name or the physical address of the property. 

My two questions are how much actual physical time must I spend their so it may be considered and treated as my actual "registered" place of business by the tax man? 

Physically in between the entrances to those is a stairwell that leads to 6 apartments on the 2nd and 3rd floors.

I am just looking for some guidance on how to physically get the seller financing in place and a legal note created.

my situation right now is i do all the legwork. my realtor and i find the properties. we walk the properties and come up with a rehab price. the deal is given to the investor, and if he likes it he buys. he then deposits the rehab $ in my account, sometimes in increments if its a larger flip. the property gets sold. i get 10% of profits. only other $ i make on the deal is if i have time and do any of the physical work, then i can pay myself.walking anywhere from 10 to 40 properties a weekarranging and making deals with suppliers and workers to keep costs downtaking responsibility for project getting done for the amount i quoted it to bei wouldn't consider doing it for a nickel less than what i am right now, and often times that isn't enough. 

I am in the note industry and looking to do more with the physical properties as well.

One thing I would tell you is to make sure that whomever you decide to work with, make sure they are actually local to the area meaning they live there and have a true physical location that you could visit when in town. 

It's basically the hotel business with three turns a year.I can self-manage my A class SFR's in under 10hrs/year including everything and the equity is growing faster, not because of appreciation, but less wear-and-tear and tenants improving the property (e.g. landscaping).Obviously C class midwest props fall somewhere in between, but from a hold perspective, I just don't see too many management companies capable of creating equity through proactive management of the physical aspects of the property, particularly in these fringe markets.

Should I physically go to the court house to view public records?

I mean taking into account all the physical labor of construction, the searching, finding people to work with, etc.