There many things you need to know ideally before you make an offer.Your first thing and not necessarily be the most important is the first impression when you drive like the building(s) and the landscaping, is it's location good for your tenants, the mix of the floor plans, can you add any value, Make sure when looking at the income and expense records that you looking at actual financial statements.Are there any nearby schools and are there there any nearby amenities and what type of the parking is available to the tenants, how any nearby apartment locations and what, if any, are they doing to attract prospects, look at all units and do not let the current owner trying to get you  not to do that, how does the current rental rates being collected near the market average, does it need any capital repairs or rehab right away,does it have a positive cash flow now, is it being properly managed by property management, and is there any nearby retail development and do its match your target market.

@Jeff Glass I was under the impression that the with an installment sale you got 95% of the sale price and you had to pay back any depreciation that you had taken thus far.   

There always should be the first impression and can you add value. 

Based upon their website, I'm not terribly impressed with their professionalism.  

However I was under the impression that all of the deceased owned real estate property, in which I found was not the case.

I was under the impression that it was two years, but you should double check and get it straight from the source. 

Bold move @Jason Sirois  - impressive!  

I've been under the impression that absolute dollar amounts were taboo FOR YEARS.

Then, most importantly, search for their vector of entry and seal it up!

Looks impressive.