But now it is national and every agent will be required to practice this for every buyer.

Now, the city of Decatur is a nationally recognized town with top-tier schools and astronomical real estate prices.  

Price wise, houses in the area mostly follow (roughly) national inflation rates.

Toledo’s median home list price of $200,000 is less than half the national average while price volatility has been muted compared to the wild fluctuations in much of the country.

if you do not have US citizenship, a green card, or a visa, make sure that if you are seeking financing that you either have a US co-sponsor or your lender can lend to foreign nationals.

Would post in as many local or national groups (for you target clientele as possible).

You can get free monthly national reports and seasonal for cities.

No big, national, publicly traded banks will do this loan type.

However, real estate values (on a national average) have never gone down over a 10-year period. https://fred.stlouisfed.org/series/MSPUS

Full disclosure I help dispo deals for REI Nation who operates in several markets in the southern/middle part of the country. 70% of the sales go to existing clients so I think that speaks volumes to those investors experience.