All units would be metered so data would be there to bill the tenants (so no ability to question the bill) but landlord would still pay the bill given we can not have 4 main master water meters (can only do 2 x1 master meter + x1 sub meter combinations). 

Sellers should want a sentence in which the tenant confirms their security deposit will be transferred to the buyer, and the tenant will release the seller from liability for any deposit refund after the sale.

Appraisers are using MLS data and often it is lower than actual rents. 

I don't know of anywhere with good data.

All pricing of rental prices is done with data. 

Just remember anyone who has acted as your employee, attorney, accountant, investment banker or broker, or real estate agent or broker within the 2-year period ending on the date of the transfer of the first of the relinquished properties is considered your agent and is disqualified from being your QI.So definitely ask them for recommendations but they cannot act as your QI on the exchange. 

In my case, my specialty is flipping the transferable residential development rights from resource land such as farm and undeveloped rural-residential multi-acre parcels.

Quote from @Pietro Gaglio: Residential assisted living facilities need to keep track of various data such as vitals, bowel movements, and amount of food eaten.

I could envision them refusing to disburse funds until the LLC is reinstated.There may be a way to transfer ownership of the account, but it is probably just easier to move the money.

There aren't many co-ops in Southern California, mostly in LA or a senior community in Orange County, but there's not much of a discount between condos and co-ops - at most, 10%.What is your source of the 10% difference data?