But balance is key—keeping some cash reserves for unexpected expenses is critical.Lastly, I’d recommend running detailed numbers to ensure the property cash flows well, even with conservative estimates.

Neither outcome is good for you.I give some approximations of each expense category in The Hands-Off Investor, but the best way to nail down operating costs is to look at the property's historical performance.For example, Contract Services and Utilities. 

Is there a place where I can type in the address of the properties I am considering, and it will spit out an estimated monthly rent? 

What is your estimated rental revenue for LTR Vs.

I also review the insurance costs and try to get a solid estimate of coverage expenses to fine-tune my calculations.

Banks must approve a short sale for a short sale to take place, and banks hire appraisers and other real estate agents to perform broker price opinions (BPOs), or estimated values of the home.The goal would be to negotiate with the seller before the home becomes a short sale. 

What do you estimate the ARV?

I bought the property at $365k, and its new *estimated* value after renovations is 390k-400k.

People all of the time, "over estimate" the opportunity and "underestimate" the cost and challenges in doing a profitable flip.

Again i believe it is my best estimate of actual sustained maintenance/cap ex in my market.I did an estimate about 1,5 years ago on a emerald coast 3/2 condo with class a interior finishes and came up with $300 for just the interior (class a finishes cost more).