Many attorneys with the requisite experience and equivalent education never sit the added exams, typically for the same reasons most businesses never join the BBB - the designation is mostly a "feel good" for consumers.  

If not written properly, you may find yourself doing an expensive time consuming foreclosure instead of a quick cheap eviction.

Even if it is turn key one mishap consumes the budget.

Implementing unique design cues and/or a small solar system could do just that (especially in areas where consumers are more conscious of social/environment/green issues).

Things to consider: PM is very time consuming and there are a lot of fair housing rules and regulations you have to keep up with to make sure you don't break the law.4plexes are fine and can get you a conventional 30 years mortgage but economically they behave more like residential than multifamily/commercial properties.

My husband and I are very busy with our current day jobs, I own a business which is particularly time consuming. 

But a properly run park is a very nice asset.and the last two i did in Oregon the cities actually have made an about face it used to be they wanted those things shut down because of the high crime and mini ghettos they become if not manage with an iron fist.but now they look at them as solving the affordable housing issue which is very relevant on the west coast.. not so much back east were you can still buy homes for 20 to 100k that are livable.

I just caution you to be careful with consumer debt even if you have the best intentions. 

According to the S&P/CoreLogic/Case-Shiller National Home Price Index (which I helped to create) as of September, the prices were 53 percent higher than they were at the bottom of the market in 2012.That means, on average, a house that sold for, say, $200,000 in 2012 would bring over $300,000 in September.Even after factoring in Consumer Price Index inflation, real existing home prices were up almost 40 percent during that period.

Redoing popcorn ceilings is time consuming and hard!