I've already had to replace several air conditioners, furnaces, hot water heaters and a roof, but I know several of my properties will need more big ticket items in the future and I want to make sure I'm prepared for it.  

Here is a 12k btu one that is supposed to operate below freezing for about $900:http://www.sogoodtobuy.com/12000-btu-mini-split-ai...These types of units are also supposed to be more efficient than central air anywayI've also had good luck with portable heat pumps in my own home but they are a little bit noisey compared to the mini splits but they are also about a third of the cost.

The most important was to test the major systems: my property had a boiler room where all the copper was removed and the HVAC company didn't air test the lines so we found over 300+ leaks INSIDE the complex which naturally made for lots of drywall repair too. 

They are not getting enough air movement in or out of the space.   

Primer doesn't hold up to water / air born vaper / steam / and humidity.

., former employer 401k) to a solo 401k are not reported on Form 5498, but rather on Form 5500-EZ, but only if the air market value of the solo 401k exceeds $250K as of the end of the plan year (generally 12/31);When funds are rolled over or transferred from an IRA or 401k to a self-directed IRA, the amount deposited into the self-directed IRA is reported on Form 5498 by the receiving self-directed IRA custodian by May of the year following the rollover/transfer.Rollovers (provided the 60 day rollover window is satisfied) from an IRA to a Solo 401k or self-directed IRA are reported on lines 15a and 15b of Form 1040;Pre-tax IRA contributions on reported on line 32 of Form 1040;Pre-tax solo 401k contributions are reported on line 28 of Form 1040;Roth solo 401k funds are subject to RMDs;A Roth 401k may be transferred to a Roth IRA (Note that from a planning perspective, it may be advantageous to transfer Roth Solo 401k funds to a Roth IRA before turning age 70 ½ in order to escape the Roth RMD requirement applicable to Roth 401k contributions including Roth Solo 401k contributions and earnings.)

I had a couple that got one and it managed to eat the plug off a window air conditioner, the quarter round in the bedroom and my front porch swing,   Also tore up the shrubbery in the raised bed in the front because, of course, the dirt was nice to dig into during the hot summer months.Since then, no puppies!

I prefer Macbook Air and then have a 27" screen + keyboard at my home.

I am in the Air Force & stationed in Great Falls MT.  

I would search VRBO and air to see availability and pricing from people that currently have rentals and run the number to see what type and size properties may be profitable or least break even if you just want a place where you can go and it pay for itself.