1) the house needs to be listed and dated before the purchase contract is signed2)anyone the homeowner designates can negotiate depending on the laws in your state.

No structure, whether residence, accessory building, tennis court, swimmingpool, antennae (on a structure or on a Lot), flag poles, fences, walls, exterior lighting, or other improvements, shall beconstructed or maintained upon any Lot and no alteration or repainting to the exterior of a structure, with other thanthe original house paint colors, shall be made and no landscaping performed unless complete plans, specifications, andlot plans therefor, showing the exterior design, height, building material and color scheme thereof, including paintmanufacture and paint chip, the location of the structure plotted horizontally and vertically, the location and size ofdriveways, the general plan of landscaping, fencing, walls and windbreaks, and the grading plan shall have beensubmitted to and approved in writing by the Architectural Control Committee, and a copy of such plans, specificationsand lot plans as finally approved deposited with the Architectural Control Committee.

I've actually used an epoxy formula designed for this purpose.

Bill Gates designing a new toilet?

All ways design on a dime just because you have the money does not mean you have to use it.

The exception is custom designed hardware that is specially made for the house or a specific space...these are generally considered fixtures.All that said, the contract should specifically state what does and doesn't stay, especially if you're using a standard state contract, where there is probably a section specifically for this purpose.

This was designed to keep people from leasing luxury cars through their businesses to avoid the luxury vehicle tax limitations.

HOA's have a lot of potential to have problems so the more you learn the better.Poor construction is a common issue so what you see may be the result of design flaws.Poor management and not taking care of maintenance is another problem.

Ed-The indemnification clause is designed to limit risk for incidental occurrences or acts of god like slips, falls, scratches, fire, lightning, etc.

Who is the designated agent for purpose of service?