I am in the process of getting a pre-qualification letter and I,too, am looking at small  multi-unit properties. 

I'd write each tenant a letter upon closing stating that you do intend to raise the rent, but slowly.

I am about to put in an offer for a mixed use building in downtown Schenectady soon.

I have not seen anything yet but was told they would provide a letter allowing me to turn them on for 3 days but I am responsible for all costs.... deposits, connections, plumbers, etc...

For all the postcards, letters, "ringless voicemail", SMS spam and virtual assistants I get calling me, I think I've had ONE real honest person call asking if I was selling, and even though I wasn't,  I talked to him like a normal person and gave some advice about cold calling.

I'd fix or replace window, bill her and also send a non-renewal letter for the earliest date you have (can't evict if paying, as your attorney says).

Purchase price: $110,000 Cash invested: $35,000 This is a Mixed-Use, triplex with a long-term commercial tenant (The USPS).

I would recommend starting with educating yourself thoroughly on the business, your market, the types of properties you want to flip, construction costs, what other investors and flippers are doing etc. wholesaling is very competitive and you need either a very large budget or a lot of time to be able to generate deals.Flipping I am all about finding good deals and good contractors and lease options are all about motivated sellers.Check our Carrot websites, yellow letter HQ for mail they have some good info and turn key sytems.

Inevitably the expenses get mixed on different cards. 

Allen this is a mix-used building and probably zoned as such.