Yes, you should have to pay for them.Blinds typically pop into a clip, so that might be 5 minutes to repair. 

Anything over that could mean that the property is overstaffed, or it could mean that management is delivering a very high level of service such as in a luxury property that has a doorman and all sorts of staff that you don't typically see in garden style apartments.

They typically have multiple origination points (meaning very high closing costs) very high rates (compared to conventional but also compared to 6 month or longer waiting period DSCR products) and almost always have VERY long pre-payment periods up to 5 years.

We typically look for decent properties that are likely at the bottom of some bigger investor's portfolio.

Investors typically won't care that you're representing the seller and others will prefer that you're direct to seller.Listing it on the MLS will get the most inquiries for the property.

Typically, private lenders pay anywhere from $500 to $2,000 for loan documents, depending on the complexity of the deal and the attorney’s rates.

Typically, unattended to small maintenance items will become bigger issues over time.

The suburbs in Philadelphia also great investments but typically the price points are a bit higher. 

Also, what's the typical fee structure for single-family homes?

Yes, since the property was under contract before you backed out due to inspection results, the inspection fee can typically be treated as a capital loss.