We have in our management agreement what amount of work we're authorized to have done without an approval from an owner (ours is $350)  If you don't have that, I would request that. 

Carrying costs in purchase and or rehab is financed, cost of capital on refi, re-recording, title, updated insurance, etc. their are many costs at play after initial funding then to transition long term unless your straight cash on the front end.

Word of mouth referrals from past clients play a very critical role in most realtors’s business, and to get that they need happy customers.

Your consist numbers you have and the variable numbers that you can play with are rehab and holding costs...

I'm a web developer/ real estate investor and I just started playing with Dapps, is anyone else working on similar application?

I personally would always play the role of GC myself.

The section continues, “… Bed and Breakfast establishments, boarding homes, dormitories or multiple units, or any other similar lodging arrangements are specifically prohibited.”Section 3 – Commercial Use – states, “…no part of a Lot or Dwelling shall be used or caused to be used or allowed or authorized in any way, directly or indirectly, for any business, commercial, manufacturing, mercantile, storing, vending, or other such nonresidential purposes…”.

The other options you are playing with fire as using a HELOC that is paying interest is essentially buying with 100% financing.Having no skin in the game has always been a high risk strategy and people were able to get away with it the past few years due to the money supply and inflation but I would not use that as the measuring stick.

While the IRS does not mandate a physical site visit, the IRS cost segregation audit technique guide (ATG) does suggest conducting “field inspections.”It’s important to note that the ATG is not an official IRS document.It serves as a guide and cannot be used, cited, or relied upon as an authoritative source.However, the recommendations in the ATG are worth considering.According to the guide: “A field inspection is recommended to document the physical details of the building, type of construction, materials used for construction, the assets contained in the building, the size and types of building systems, and any land improvements that were included in the purchase of the property and the condition of that property at the time of purchase.”So while the IRS does not require a site visit for cost segregation studies, following the guidance from the cost segregation audit technique guide can be beneficial.There's this thing called Hierarchy of Tax Authority that CPAs and Tax Attorney's reference.Let's not get too carried away with comments like, It serves as a guide and cannot be used, cited, or relied upon as an authoritative source....

Unfortunately it’s very probable you will be responsible for this unless there is a statute of limitations in your state which could come into play.