You have to get someone to walk it, give you a reno cost, then inspection and appraisal , takes time, Good luck 

Some lenders will require as little as 15-20% down (of the total project costs.) 

There's preferences.If i have to choose, I would choose either AppFolio or Yardi Voyager, but these can cost anywhere from $14K to $150K. 

I give the warning because these tenants live in a little bubble and aren't considering the costs and inconvenience of moving.

Also run a few scenarios of costs and see how much over budget these repairs can go before you don’t think it would be a good deal anymore.

First flips cost twice as much as you think and take twice as long, every time.

IN our price points 20 % of the build cost is way more than we are paying  but we are giving him 30 houses a year to build.. so there is that.

I keep hearing how people are cost segregating, but I have pushed my accountant numerous times on this and he just saying that if we did the cost seg, all of that depreciation would just go into a reserve that would then be applied when we sell the home. 

If the property goes unrented or is rented but the tenant doesn't pay can you cover the mortgage, eviction cost, renovation cost and holding cost during that process and pay your bills?

And if they did, it would cost you way too much.You are behind the eight ball, which is probably why you are here, but it's not adding up.