I currently have the structure/manpower resources to build a MF up to 20 units.

They simply don't have the manpower or budget to review every cost segregation study.

Even with that, I occasionally bite down on something that I wished I hadn't...but I have the manpower and crews to turn even most of my mistakes around.

Coincidently this is also the time manpower diminished and the project came to a crawl.

( # of Manpower, Office, Insurance, etc..) - Do I need to have any set experience before approaching a building with 20 units?

Fix and flips is 20% of ground-up construction. 20% the qualified manpower/subcontractors, 20% schedule/time, 20% the funds, 20% the knowledge required.

We pretty much self manage with attorney but are also local and have the manpower to do so. 

The abatement company can be a 2-3 man crew but mostly they are 200+ which makes a very big difference in price, a small family owned abatement company is 30-50% cheaper than union run (200+) manpower.

Plus with Trump deporting  a large portion of illegal construction workers in the Southwest States bordering Mexico construction companies don't have the manpower either.

When they see that you are not going to go away (usually about the second or third time you request a meeting at the station), they will redirect manpower to address the issue to get you out of their hair.2.