I’m looking to buy a 4-20 unit property, which the cash flow would definitely service the new debt. 

The rate becomes less important the shorter you keep the debt.

The refi amount will be limited by the relative contribution the refi would add to the debt side, and the NOI of the rent would add to the income side. 

North Atlanta here.Do you ever notice, the people who have the most negative things to say about investing, don't have any money, are crushed by debt and don't invest?

I have great credit , the only debt I have is my mortgages, I house hack and pay no rent, live way below my means and I can save a nice chunk a month just keep getting denied.

@david @David Brent thanks David, I do googled this topic before posting here as u said there is no clear answer even on those articles. but now i'm getting little bit of sense on this topic. anyway for CRE prices are in direct relation with NOI so debt will be considered as second part i Guess that still kind of have Impact and No impact on Property Values based on supply and Demand and future Economic factors not just the Interest rates

You can read more on debt-financed distribution 

Debt Service Coverage Ratio (DSCR) is an important concept you should become familiar with.

No additional assets, monthly debts <$250.

I've seen many newbie investors whose first action is creating an LLC and all they did was waste money and didn't realize that they could not get agency debt within their LLC.