You are not going to have a great location for low-mod housing unless you build it.Pick areas that are clean, that don't have a bad reputation (check police calls).Selecting properties one at a time, IMO, really is about location and functionality more than style or amenities, you want a safe, affordable and sound structure.

One, it increases the functionality of the home greatly, tenants appraciate being able to use all their windows. 2, comfort factor, new vinyl windows are more secure and address the concerns of your tenants as well. 3, I always upgrade to energy efficient windows, its $30-$50 more a window but in my experience it pays off. 4, with the efficiency and functionality your tenants are happy and are saving good money on utilities.

Some CRMs also allow for similar functionality with calendars as well as other features too.

If I had to do it over again I'd pay an accountant who specializes in REI accounting to help me set up my books in Buildium -- I've learned as I've went along, however at the beginning did not get a chance to utilize a lot of the financial functions since my books were not as accurate as they should be.  

Originally posted by @Brian Gibbons:Eric H. has ever written :)And read Sun Tzu The Art of War :)That about the Boy Scouts was a little inter-service ribbing, I love all the service equally, each has a function and we play as a team!

Any of those or a combination are common.

Go to the next level and consider somebody with a combined $5M in equity and price out  $5M in liability insurance.

If you find two less expensive properties they can be combined to create enough value.

Using an equity line and a small business loan combined to finance the building of a new single family rental property.

Combined utilities is a tough one.