I’ve sold 13 properties on terms.

The investor should consider what his long-term strategy is - are you going to live there for 5 years then sell, for instance?

If they continue to smoke in the apartment, you have grounds to file for eviction due to them breaking the terms of the lease.

WE are looking for a financial software recommendation for our multiple properties (short, long and flip) in our LLC.  

You might also be a good candidate for a small boutique hotel, an operator looking to retire will often entertain seller financing on fair terms and you could likely qualify for a SBA loan to help with your vision. 

Now, every deal isn't a deal, so it starts with how you purchase and what your long term goals are.

First one would be Zillow Rooms - in terms of range and scope of audience.If you want to be formal and have great photos then try on coliving.com Also I believe that booking.com allows it. 

3 Steps To Take Immediate Action:1) Set small, short-term goals (establishing a one-year, three-year, five-year goal has helped me tremendously)2) Seek help from people smarter than you (I am never shy to ask questions, even the stupidest ones)3) You grow through what you go through (We will make mistakes along the way and that is ultimately what will help us become better investors)

Is there a standard letter that I need to send tenants a month before the end of their lease to remind them to move out by the end of the term?

It might be easier to treat it as a full scenario with Purchase price, Down payment, Term, Prorgam, occupany, number of units/rents per door, Taxes/Insurance (Any flood, HOA) etc.