Aside from the kitchen what isn't broken is out dated.

I've reached out to about 50,000 contacts during this period but a few potential sellers a came across seem to already have realtors.My current approach involves using Deal Machine to identify potential properties by zip code, focusing on those with unknown sale dates or built dates before 2000.

This is the reason the best policy is to give regular/annual rent increase which would avoid your present landlord fears.Just send the notice in the email with the amount and date effective.You would be farther ahead if you did not fear the responsibilities of being a landlord and simply raise the rent to market or get a new tenant.

You can see whether payments are made, on what date, for how much, etc.

Flips will always be in demand in homes that are dated but in great areas (San Diego, San Fran, Denver).

Keep it brief and to the point with measurable requests "you need to be out of this address on this date at this time" this isn't a discussion, and if it were me I wouldn't go there in person until he's gone, he'll probably be quite angry.

The buyer was informed that the interest rate will be floating because the construction completion date is further away (5 months) according to the preferred lender.

The slippery slope of late rent payments start with checks because there is less footprint on their actions to actually pay you and they can falsify dates. 

In many instances I am notified an offer was made in a multiple offer situation with an acceptance date expected in XYZ days.

Me on there end, once I know its vacant I list it and say it will be ready on this date.