I'm also going to plan to do the porcelain tile in the bathroom, because I'd rather pay more now to maximize durability and the longevity of the rental.

I am a believer in building a good team, but I think it is a major hang up for people to try to have all all-stars and if they lose anyone, especially if that person is a single point of failure, the wheels come off.You want to have good people but you shouldn't need great people if you want longevity and to be able to remove yourself.I listened to the book on audio so I didn't get the lacking in the writing department.

Then after it's been replaced recalculate the amount you are accruing based on the cost and longevity of the new roof.  

I didn't mean to induce any anxiety with my original response to you, but seeing how this is a long-term hold, just looking out for the structural longevity of your investment (you don't want to be shelling out even more money down the road, if this can be fixed relatively cheap right now). 

Longevity does improve your chances of approval.

Make sure that you take into consideration the longevity for lifespan of an item and what the cost will be to replace it.

Not too many Rentals, not too few, and I’m always looking for a fixer upper close to me.I have friends that use this similar philosophy keeping active and invested in their work like Rehabbing cars, and another guy enthralled with sail boats.For me; if it’s fun, makes me Useful, has financial upside possibilities, keeps me active and sharp, maybe adding to my life’s longevity...

The renter profile will be similar to an apartment renter which often times have less stability and longevity.

For the purposes of maintaining longevity of the Unit as well as considering the quality of life of the other tenant (a.k.a. me), it definitely makes sense to not go through with adding the new tenant.

These pitches are almost always wild exaggerations or examples of successful deals that are relatively rare and require knowledge, experience, capital, longevity and luck.