That said, if my business is to gain traction, I will keep the lines of communication open and we may be able to forge an amenable business relationship in the future.Nice meeting you.

I work at the local community college where I started a sustainability/construction/renewable energy/energy efficiency program and teach some courses.

The LO needs to communicate with the buyers agent and they should relay this to the listing agent so it gets to you.Sounds like bad luck to me but the appraisal thing is weird to me unless the home had some issues that were being taken care of.In the future have your realtor's LO do a cross qualify so that expectations are set from the start.I hope this helps and good luck with all your future deals.

The key is communication.

@Westin Hudnall I think the first place you would want to start is a Resident Portal, which would allow your tenants to easily communicate with you, without always being on your phone.

Would it be most efficient to replace with forced air furnace and air conditioner?  

Age and efficiency of the boiler are big factors - My building has an older boiler that I plan to replace before next year.As others have said, there are a lot of variables and the only way to tell is to get actual records from the buildings you're interested in.

Is this still a viable option in todays market and if so how do I communicate this option to mortgage brokers?

Keep those lines on communication open.Check to see what limits you can have for a security deposit. 

Can they communicate clearly and efficiently?