If you really feel like rewarding them or trying to keep them, leave the rent 10% below market but not more than that. 

A few thoughts on that point: It seems to me that selling when your properties are high inherently increases the risk in terms of where you are in the cycle and how your timing turns out upon redeployment (higher risk, higher reward, I suppose...). 

Land lording is stress full but rewarding and gets easier .

It does require some work, but it is so much more rewarding. 

Real estate syndication is exciting and rewarding but it is a LOT of work.

For example, I have a lot of travel rewards from company travel that I can use for personal use, I have an entertainment budget for customers, I have a company car/gas, I get comped meals during the week.

So we would love to change that around, be able to give back more, and live a more fulfilling and rewarding lifestyle. 

I specialized in multifamily properties, this has proven a rewarding niche because I mostly buy from investors that (the majority of the time) already have a property manager in place.

When I tell people I rather rent and invest instead of buy my own home they say I’m crazy and it’s too risky (which may be true) but I believe greater the risk, greater the reward!

Instead of just saying yes or no, why not get a bid or two and show your tenants the cost vs reward and work them through their request so they understand why you do not want to do it.