I would go on Zillow and filter for "new construction" around these lots and start with 6 months back and if there are no results, bring it all the way back to 2 years.

Turnover cost breakdown below.

Prioritize value that boosts NOI and appraisal without heavy disruption: pave or gravel the drive for cleaner parking, replace unsafe stairs/decks or at least tighten, paint, and add railings, and give the exterior a quick win with lighting, mailbox numbers, and simple landscaping for curb appeal.

-Water filter?

Hi, I'm at the end of a long rehab of a home in the City of Cleveland (44109) and had a contractor confirmed to put down a gravel driveway for the home.

I had offers on a couple properties this weekend and thankfully we couldn't come to an agreement as I was offering 15% below asking. 

Quote from @Chris Watson: Well, I am not @Michael Baum and pale in comparison to his deals of the day, but this is one all RE owners can use12 Pack of MERV 8 Air Filters is $39.90 ($37.80 for military & veterans)  https://www.homedepot.com/p/HDX-12-in-x-12-in-x-1-in-Standar...Sizes available: 12x12, 12x20, 12x24, 14x14, 14x20, 14x24, 14x25, 16x20, 16x25, 20x20, & 20x25This is a year's supply. 

. ❄️ HVAC Maintenance Contracts: Annual tune-ups and semiannual filter replacements aren’t optional if you want your system to last.

They expect us to replace lightbulbs, won't change furnace filters and we also have lawn maintenance issues with them.

It seems like the "filter" is more important than ever.