It's hard to say offer amount without knowing the rehab part since that could blow this out the water.  

Purchase price: $465,000 Cash invested: $80,000 Checkout my Airbnb here: airbnb.com/h/madeirabeachoasisSalt Water Pool & Hot Tub: $60,000Tiki bar with electrical hookup: $3500

Without solid knowledge on this subject, you can easily end up in hot water. 

Purchase price: $465,000 Cash invested: $80,000 Checkout my Airbnb here: airbnb.com/h/madeirabeachoasisSalt Water Pool & Hot Tub: $60,000Tiki bar with electrical hookup: $3,500Mural: $1600Interior Furnishings: $6,500Exterior Furnishings: $1,500Monthly gross booking revenue: $8,000-$12,000

Purchase price: $465,000 Cash invested: $80,000 Checkout my Airbnb here: airbnb.com/h/madeirabeachoasisSalt Water Pool & Hot Tub: $60,000Tiki bar with electrical hookup: $3,500Mural: $1600Interior Furnishings: $6,500Exterior Furnishings: $1,500Monthly gross booking revenue: $8,000-$12,000

When i replace water heaters i replace all the short pipes.   

All water, sewer, and electrical infrastructure is being replaced.

I assume you are mostly looking for leaks and water damage?

water heater? 

@Sharma Parth the company is out of Arizona and in 12 markets.Just a few years ago, Flint had a major crisis due to lead water line poisonings.