Keeping the old heating system and installing a new air handler, condenser and ductwork can be about half the cost of doing everything new while still providing the features (central air) that your buyers will be looking for in a renovated house. 

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

Find the dominant wholesaler in your area and offer to Bird Dog for him or her.You'll learn a lot about how to analyze a deal and get paid while you do it.  

A good starting point for someone new is to get dialed in with your local REIA.BP is fine, but it is no substitute for personal contact with other investors.If your interest is wholesaling, another good starting point is to be a Bird Dog for the dominant wholesaler in your area.  

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

However, if you are serious, sign up with a mentor.If you are short on cash, find the dominant wholesaler in your market and offer to bird dog for him/her. 

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

Any automatic feature increases NSF risks.

This is one of my favorite features of Bigger Pockets especially for asking specific questions.

Lisa Misuraca Key features you should look for is "water coverage" and "theft coverage".