What I'm trying to say is find a healthy balance. 

I'll give you the info that I was able to dig out:1) Property is being listed for $299,0002) Owner owed $370,000 to the bank3) I valued the property as $375,0004) The property was listed on the MLS for 174 days, and price was dropped to $299,000 recently from $399,000. 5) The Houston market in general is pretty healthy, it's currently in 4-5 month of inventory so it's neither a seller nor a buyer's market. 

Set rents by FMR and just smile.

Smile at everyone, but seek out the ones who have some answers for you.As a teacher I hate this expression but there is some truth to it- Those who can, do.  

Keep a healthy amount of cash on hand for repairs.  

They are all rented and have healthy cash flow.For the last four years I have worked full time in residential direct sales for a major cable provider and will continue with the company as long as the position is viable. 

These are single family homes in the NE in a market that has a very healthy rental market and we were able to pick up many of them all at one time and at a very good price.

That account always starts to make me smile JUST before I need a new roof or something along those lines.I have no clue how your 15 units are configured, but I would guess 20-30k on hand in cash would probably be a good idea.

I believe it can yield us a healthy cash flow for life.I am working on a pro forma as  Nick suggested.

Along with a healthy paydown, you might realize a huge gain when you sell.