Car loans and Student debt(Arguable) is bad debt. 

In fact, in a niche like this, finding the right education is arguably priceless.

It's arguably a worse idea than using Zillow's Zestimate.  

@John Matthewson - To answer your original question, check out a book called "What Every Real Estate Investor Needs to Know About Cashflow...and 36 Other Key Financial Measures" but keep in mind the (arguably) most important factor in MF investing right now is the market you're buying in. 

Besides that I agree it's going to be simple supply and demand .Supply and demand still drives market rents, even (and arguably especially) in rent controlled areas.

I would suggest living nearby Downtown Summerlin, it's arguably the best part of Las Vegas.

The taxes in Michigan are so high, it is (going to) drastically compress the cap rates of properties.In a nearby city (Harper Woods), the NORMALIZED TAX RATE IS 5%If you want to get an un-levered return of 10% on your commercial property (which might arguably be low), you need to be getting a gross rent roll of close to 20%. 

At the end of the day, arguably the most important element or phase of the BRRR process is the refinance to get your exit money.

This place is beyond filthy and, arguably, unlivable.The previous tenants moved out and the owner didn’t clean or fix anything.

But I would note that Philadelphia is arguably the most tenant friendly area in Pennsylvania.