Because such plan allows you to pick virtually any investment you wish you can control what you want to invest in now when you are younger so you can be more aggressive and when your strategy changes in the future you can easily make the adjustment.

My lender has suggested a "portfolio loan" but it looked to be adjustable rate and less attractive for my buy and hold strategy.

are there any ways to cut down on these unexpected repairsYou need to adjust your thinking.

I realize I can always adjust it, but its held me up a bit.

It's not a CMA, but you can enter the data into a spreadsheet to do +/- comp adjustments.

However in the grand scheme I would make sure to raise the rents for sure, 10 year tenants are a huge plus to me but being that far below market rent needs to be adjusted.

I liked using then as they would price down to 6.25% on a 30 year  with a 5 year adjust.  

Don't be surprised if you find you have to adjust down the road (everyone has to adjust their strategy at some point).What I've read time and time again on here is that people acquire numerous smaller properties, then transition into a larger (50+ unit usually) complex which allows them to leverage on-site management efficiencies.

Always listen to the market and adjust.

My 0.013 (adjusted for inflation).