If there is more demand than supply, this will be the outcome in desirable areas. 

I will be living in the guest house, while renting out the main.Both units are without washer and dryer units, my question is, do I supply them in the main house; or let potential tenants figure that one out?

.- If you chose to set up your LLC as a pass-thru entity, then you will need to supply your SSN.FYI - to avoid getting nasty letters from the IRS about errors (which might cause us to be audited), we will ask for a copy of your EIN assignment letter or a copy of your SSN card to confirm those numbers.

When you invest in one a month (like we do), they form a classic bell curve over time, averaging stronger returns than the stock market. 

That gets worse as you get farther out of the cityTLDR: values depreciate, inflation has gone basically nowhere in Japan for a long time, the supply of housing is pretty good compared to demand (unlike the US) and that's because of flexibility with rezoning and development, taxes on rental income are high. 

So Supply and demand have really shifted quickly. 

.), but the bedrooms are regular keys, as @Jonathan C. mentioned for the front door, the unit is set up to send me an email when the batteries are low. i also have another student rental ( 8 rooms, 2 entry, 2 units + utility room) one master key and each bedroom has its own key that will get students in the entry, there unit, and there own bedroom. had a locksmith do that one. cost me a few hundred dollars with keying and supplying the locks ( 13 total ). i like both setups but may look into the landlord locks again for my 3rd student rental i just purchased.

We are going through a challenging time that will make us stronger.

Typically, co-op's are less valuable than condos for a number of reasons such as supply/demand, lack of investor interest, older units, estate planning issues, financing and board policies. 

My experience is those have been in short supply since beginning of time.