First off I took the realtors suggestion and listed with the property management company he promoted to me.

@Adam AeroI completely agree with @Sofia Komrskova about doing it to code. 

Generally larger commercial properties and shopping centers are easier to classify with hard and fast rules, but to the points above the residential areas really move very quickly and have way more nuance than most people care to admit.zip codes are generally way too large for my liking at least in my market to provide any kind of insights other than macro level economics but even then highways or rivers that cut through a zip code can end up with totally different trade areas.we can get pretty granular with cellphone data and with grocery center data to understand the trade areas and their true boundaries, but that kind of data pull is generally only cost effective for investors doing larger scale projects or developments, and honestly we still just end up getting on the ground and feeling it out, so I generally tell people that the money is better spent on a plane ticket and weekend trip in the area you are looking rather than any kind of "trade area" level data studies.and generally B class in 1 area means something different than another. 

Current HELOC rates are typically 8-10% depending on your credit and lender, though some banks offer promotional rates.

No one accountant is an expert in all areas in the tax code, so best to figure out what you want first in the world of real estate and then dive deeper there. 

BP has done such a great job of promoting SFR investing to the masses, that those masses have pushed up real estate prices to where it's now DIFFICULT to cashflow right away.Keep going, but understand you won't get rich in real estate overnight - it's a long-term wealth building strategy.For the short-term, recommend joining a few in-person investor meetings if possible, otherwise online ones.

However, there are tax code changes every year.

@Jim G.Per the International Residential Code if the glazing is less then 60 inches vertically from a standing or walking surface then yes it’s required to be safety glass as it’s considered a hazardous area.  

While I would have built $150,000 in equity, the cash flow simply doesn’t work.Now, let’s compare this to the market conditions when BRRRR was highly promoted (pre-2020).Interest Rate: 4.75%Monthly Payment: $3,057/monthRent: $3,600/monthIn this scenario, I’d be making over $500/month with $23,000 left in the deal, resulting in a gross 26% cash-on-cash return—an excellent deal.As you can see, rates and prices play a critical role in the viability of the BRRRR strategy.

It is a standard conventional loan and was offered as a promotional financing by builder at the rate of 5% for investors.