Thank you Jonathan - this is helpful for someone like me who is getting started. 

I suggest a few things to help you get started: First, fill out that profile and add a profile pic!

I know how to get fantastically accurate estimates for simple single-family deals but was wondering if anyone had advice on where to start for running numbers for 50+ unit deals.Also, if anyone has any advice on helpful systems and technology - or for managing larger scale real estate businesses to be a valuable partner, I'd gladly listen. 

YouTube has a lot of great videos for this. 

A significant participation activity is any trade or business activity in which you participated for more than 100 hours during the year and in which you didn’t materially participate under any of the material participation tests, other than this test.

I've been looking at buying RV Parks, Boat Marines and or Mobilome parks, I've read that SBA and HUD do have loan programs in these areas.My question is who do I contact to help get the ball rolling and pre-qualification. 

This is an expense you want today, that will save you a ton of time, money, mistakes, frustrations later.

This was our first long-distance flip, which was about 3 hours from our local market.

Knowing the monthly rent helps you assess the tenant’s financial stability.

I actually found this website with cheats that helped me level up my game.