In order to incorporate what you referenced, current market data, comps, etc I just did those things manually via Realtor .com, also get on the email newsletter of my realtor. 

If you put all the addresses/buildings on one property, the fields will not fill in correctly.If you separate the buildings with their physical addresses, it will make it multiple properties which will make it difficult to expense lawn care, snow removal, pest control under one property.Any advice from fellow TC users that run into this?

They can’t be used as capital for physical improvements..."

Physical Condition/expenses.

I was thinking the platforms for bookings and some marketing if no one is physically present to check people in.

To determine the Zestimate, Zillow uses data from public records, feeds from multiple listing services and brokerages as well as artificial intelligence, including advanced technologies such as computer vision and a deep-learning neural network to incorporate data from photographs.

They used the income from my brokerage to qualify For the loan without any of the additional rental income....I incorporated a new company for ownership of the new asset for tax purposes and now I am starting to research acquiring more residential(Multi) and commercial(office and retail) real estate when the right deals come up. 

This measure incorporates the market value of the property in the test and may be applicable in properties with wider ranges of values.

I've been following the listings of small multifamily places in South Shore area, in the hope of buying once travel restrictions are eased and I can visit the city to physically see properties. 

From preliminary research online, I was thinking it was a C, which turned more to be a C- after physically exploring.