What I'm looking to do is detect water in common areas such as under the hot water tank, sinks, and such locations.

Lots of speculation here, but if rents are suspended, common sense would tell you that mortgage payments would have to be suspended as well, right? 

Most common right now is a 7 - 8% preferred return, which we can think of as interest on investors money, which is paid first.

Is that a common opinion?

Most IRAs and 401ks disallow alternative assets, but there is subset of the industry that specializes is what are commonly referred to as self-directed IRAs and Solo 401k plans.

Any balances due, tenants with late payments still dueIdentify any existing evictions in progressCertificate of Occupancy from the City of LA9a Property Report Natural Hazards Disclosure Statement Copies of all current insurance policies and insurance company contact infoLoss run from the insurance carrier (my insurance broker requires this from seller)Copies of ad valorem tax statements covering the Property for the last twelve (12) months, if anyCopies of electric bills for last 12 monthsCopies of gas bills for last 12 monthsCopies of water and sewer bill for the last 12 monthsCopies of trash bills for the last 12 monthsCopies of any vendor service contracts (common ones include landscaping, interior cleaning, laundry, fire alarm monitoring, and pest control) Copies of any environmental studies affecting the property, if any.A list of anything that will not convey with property (common items include laundry machines and appliances owned by seller)Copy of current management agreementCopies of all existing surveys of the Property, if any.Copies of all warranties for appliances, equipment, utilities, roof, paving, pool, etc., if any.Copies of the last three years’ profit and loss statementsList of all capital expenditures in the last 3 yearsDate of systems updates, if known (plumbing, electric, roof, HVAC) Preliminary Title ReportCopies of the most recent title insurance policies, if any.

With federal cutting the rates to zero, what to expect on high balance mortgages (loan amount above 500k since its pretty common in bay area). what interest rate to expect to refinance and new home mortgages ?

It's important to remember office leases are completely different than residential leases, and a 6% commission across the board is not as common as you'd think. 

This is a common insurance tactic: low quotes for year 1, then 10-20% yearly rate hikes thereafter.Taxes....again this seems low.  

Below are our most common objections and objection handlers:Buyers: I'm afraid the market will crash again/I don't know what is going to happen in the market.Mr.