:I have run many different scenarios via excel and ultimately if we are talking buy and hold, your properties in California will make you very wealthy and to even come close to what the complete roi would be, you’d have to buy hundreds of out of state properties...What data are your scenarios based on? 

(remember, rockstars know other rockstars) Ask some questions about the job growth and local data you have read about to confirm it's all legit.

Just found a client from my data base yesterday, so he’s very excited about it.

Would want as much exact data plugged in as possible.

It’s my style to pause and reflect after each deal, then rerun the numbers once it’s running smoothly and make better data driven decisions moving forward.

Additionally, just to be very precise, no one (smart) records the Lease, because it contains the financial data, and no one (smart) wants to be negotiating against themselves based on the Public Record during every transaction. 

So what number have you come up with for Capex based on that data? 

I'm wondering how this all went down without something unethical taking place...For your reference and anyone else's here, NAR Code of Ethics states:When an opinion of value is formed for a member of the public the opinion shall include the following:-identification of the subject property-date prepared-defined value or price-limiting conditions, including statements of purpose(s) and intended user(s)-any present or contemplated interest, including the possibility of representing the seller/landlord or buyers/tenants-basis for the opinion, including applicable market data-if the opinion is not an appraisal, a statement to that effect-disclosure of whether and when a physical inspection of the property's exterior was conducted-disclosure of whether and when a physical inspection of the property's interior was conducted-disclosure of whether the REALTOR® has any conflicts of interest (Amended 1/14)Also "REALTORS® shall be honest and truthful in their real estate communications and shall present a true picture in their advertising, marketing, and other representations."

What is the best method for an early stage real estate tech startup to get real estate listing data (in the U.S.) in order to to apply it to software and make it public through a web marketplace where users can connect with the listings original listing agent?

Once they pay, the accounting for the whole process is automatically entered into all of the accounting data software sections.