But really it is little more risk than if I were to build a $600,000 single family home, especially because I live in a metropolitan area with lots of fouplexes (none for sale though unfortunately, because people hold on to them because they are money makers here).

Doesn't have pictures of the unfinished basement but you could finish the basement and have a small second unit: https://www.edinarealty.com/homes-for-sale/915-highview-loop-se-pine-city-mn-55063-5012713#/

Upon sale, you will have to pay tax on the 1250 gain (depreciation) regardless of whether deducted it or not.

I don't think I could be a real estate agent or broker, the sales end is just not to my liking. 

There's also a property in that area similar build and original just like the subject property, for sale at $170,000 and has been listed for over 140 daysI am wondering if you comp the property just like you would with a SFR, this home was built in the 70's and has no foundation built in 1970.

I am considering purchasing a property at this upcoming phila tax delinquent sale.

@Calvin Rankin if it was unpaid property taxes, it would be tied to the deed and that could block a sale. 

Both buyers have their pros and cons but weigh out the written offers and see where it leads The pro of selling to an investor is that the sale will probably be pretty fast and you may not need to do anything to the property by way of repairs, the con is that an investor is probably going to offer you a lower price.

I did a quick analysis on 12 months of sales from the MLS.

Do people find it harder to BRRR with multi-plexes than SFR due to lack of comparable sales proving the increased value after renovation?