For sewer, our "grey water" (any water that goes down a sink or shower drain) is ran through a field line underground that we installed to distribute water underneath the year.

When I buy a stock investing in the business underneath.

Before contracting on the lot, you should check with the local municipality to verify building requirements, current code requirements, list of required documents, surveys, soil tests, engineered plans, etc.Once you have identified your lot and finalized your estimate its time to build.You or your GC will get the permits.For the final build, there are 2 ways to build, as either a cost plus, or fixed price project.Hope this helps, let me know if you have additional questions.

The LLC for the property management business and LLC for the STR business makes sense, and if your looking to scale this is a good "top level" that can own properties underneath it. 

.- The wasp nest that you noticed underneath the front porch and decided to disregard.- A hot tub that isn't wired correctly because you hired the housekeeper's husband to do it for you for 50 bucks.- The shiny new barbeque grill that you had the housekeepers place on the wood deck next to the railings.- That quirky, and warm, light switch that you didn't notice because you haven't been to the property in a year.- The shower that you noticed is awfully hot but failed to check into it more before you left.And so on. 

Check underneath the kitchen sink to see what type of wood is there (i.e. particle board, plywood, etc). 

Does anyone have any recommendations for a good contractor who can remove the tree roots underneath my driveway and repave the concrete?

They have a water leak and it’s been about 2 weeks. it’s going directly underneath my house to the point that it looks like a lake under my house.

Clearing, ordering surveys, soil tests.

It is not a problem.There are different remedies, including soaker hoses and other remediation items, to limit soil impaction, but piers and leveling are common.