Anything that is easily fixed would not hold a buyer back from making an offer.

These days 60K  can easily get eaten by one or two major unplanned updates.House looks great though,   so keep it up.   

To calculate an annual estimated cost, I will evaluate over ten years.

Because they're filled with dirt, they're heavy, and people won't steal them easily, and probably not at all because they're plastic. 

You should be able to find that via Google pretty easily.

He has an APN number but doesn't remember (or can't find easily) the street address.

I could easily go buy a house for my wife and I.

@Sanjiv MehtaSome of the items that you will want to evaluate when speaking with different lenders to see which one’s terms fit you best are,Loan amount: What will the loan amount be?

You have to evaluate each objectively and determine which will work best for your goals, finances, time available, etc.

Short term: (1) determine investment goals (target ROI, markets, property size, capital stack); use this to dictate where and with whom we invest. (2) market research to evaluate where and what will meet investment goals (this is where my OP question about analyzing properties with rent control comes into play). (3) decide to sell or refi our 4-unit property in line with points (1) and (2). (4) analyze cost benefit of selling GP interest as capital source in line with points (1) and (2).