I believe, they purchase their houses in better areas (better than ours) and a complete rehab, plumbing, wiring, roofs, walls, fixtures help with longevity.

electrical upgrades , plumbing,kitchen, roofing, shower, sewer,windows, doors, appliances.. plus I add the first 6month on the loan.My concern is that $18k as leftover in the escrow it should go back to the principal and I only  got  $15K the bank said that the rest is towards mortgage payments… ??? 

If they plan on doing the sales themselves than we charge 10% for any project over $2,500 but we don't charge for simple projects like AC's and roofs.

I just reached out to 1 of the broker that I know and he quoted us $3700 for my SFH with a single story, and about 1600sqrt at zipcode 76016, the roof is less than 5 years old. ....

Roofing for example pays nearly a 2:1 ratio of tax too wage.

It seems easier  to estimate CapEx - I know the big ticket items and roughly how much a new roof is, how much a furnace is, how much an oil tank is, etc..  

New metal roof, painted the interior and exterior, sanded and painted the kitchen cabinets, and installed a new furnace.

Investment Info:Single-family residence buy & hold investment in North Little Rock. 2021: new metal roof, painted the interior and exterior, sanded and painted the kitchen cabinets, and installed a new furnace.2024: New new vinyl plank flooring and carpet were installed throughout the home, all of the electrical outlets were replaced, and the A/C condenser and compressor were replaced.This property is currently listed for sale!

I live in Northern NJ and the prices here for anything are though the roof. 

Need a new roof in a 3-5 years, you probably want to be pretty liquid (year long CD, Money Market, maybe very short term bond fund etc) for those funds.On a condo board 15 years ago, I  was once able to get us into some nice CD's a decade ago that laddered with the useful life of components.