I'm planning to finish all of these this month. 

But also remember to take reports by tenants of snow not getting shoveled with a huge deer lick of salt—the crew may have just finished and snow can and does accumulate rapidly in between trips. 

Meaning walking the home, seeing what needs to be done to get rent ready and completely managing it from start to finish?

You look for comparable sales for other distressed properties that are similar and nearby and also counter that with finished version comps so you can see what your perceived spread could be.

Having the seller carry a second is not a problem for the first, as long as their business with you is finished and the loan has closed.

I provide short term rental furnishing and renovation finish list that includes paint colors, light fixtures, cabinets etc.

For me to build I would want to see recent comps of sales for the finished project you are planning. 

Quote from @Erick Pena: Hi everyone,I’m new to real estate investing and just finished reading Brandon’s book on investing with no money down.

A underwriting that i recently completed on an offer we made i used $600/month maintenance/cap ex and believe it to be as accurate an allocation as i could predict (4/3/1, 3100’, class a finishes).I use $300/month in my market on an attached 2/1/0, ~700’.  

Unfortunately, we picked a bad time, because a game just finished, and people were streaming out of Wrigley Field.