Plan ahead of time on how your renovations will be funded and have a solid scope of work so not a day or dollar is wasted on getting it done.  

The best thing is to purchase additional insurance with an umbrella policy by saving the costs to have  LLC's.I believe that most lenders will not loan money to an LLC, anyway, or you still have to sign a Personal Guarantee for the loan and that makes getting your LLC senseless, a waste of time and a waste of good money.

I have spoken to dozens of individuals who've stated its always been a waste of time in their experience, and not a single person who's had success in doing so.

Bad deals waste time, waste money and not only don't produce profits but can lead to bankruptcy.

Put in new roof, HVAC system, fixed, replaced parts, and refinished all of the hardwood floors, new kitchen. all of it, down to the non-existent 2 x 4s (historic fire in the kitchen, walls were cardboard and rolled paper in lots of places, new hickory cabinets, fixed falling in ceiling/roof for breakfast room, fixed foundation issues, new subfloor in living room, dining room, new stairs. 

How will you vet them because they don't just wear and tear on local services, they will tear the towel racks off the wall when they fall out of the shower... imagine.

It's not a manufactured home, but they basically build a shell on slab using standard materials and you finish out the interior walls / decor yourself. 

No sense in wasting time and energy fighting this in my opinion.cheers

Ideally you'd use 2-3 check valves in series as this helps if one of the valves is partially or fully open due to debris or waste. 

Until you've built some houses you don't know what's inside the walls/attic/etc.