I look forward to do just that if a opportunity presents itself to me

The Devon Drive deal provided important insights and presented a few challenges.

Their services were presented to me as a $99 a month flat fee for managing my property and he explained to me how they write a rock solid 11 page lease and help find tenants if we need a tenant.

This is important because the discounted property tax is likely the only advantage of keeping it and that is only present if you move in.  

You could probably go after high end mansions to renovate with lots of upside but the time to flip those is long and presents risk to your capital being stuck in a market cycle that has stalled and started to go back down again.This is why many are not rehabbing at all but flipping contracts and letting others take that risk.If you can sell a contract and make 5k quickly versus rehab a starter home  and take months to make 15k to 20k it doesn't make sense. 

. - Mindset's conditioned in a kind of FOMO position from covid bull-run, a stimulus action that present's a buyer surge, and a sold price surge, may be the spark for a real tangible bubble creation appreciation frenzy as those act upon FOMO to "grab the profit's" or "get in before it's too late", ignoring market basis fundamental's, thus in a feed-back-loop of rapid appreciation, ie "bubble". - I do not see risk in seller finance side of things as i don't see potentiality of mortgage rates dropping below 6% in any enduring manner.

If anyone has very good property manager recommendations in Wilmington, DE, please share. 

Both for the past and not dragging out the present. 

I would get a financing offer (I used check24.de recently) so you know what you're looking at for a payment and then compare that to your potential rental income.

It's all about the product you present.