My understanding is that the buyer assuming the loan has to meet the same credit/underwriting criteria as the original borrower, but this is not my area of expertise - lenders are typically not involved in assumptions.

., modern designs, open concepts) are resonating with buyers or renters?

In a dream world - the comprehensive solution does all this: *task management and sequencing where you can drop a property into a sequence ie day 1 call, day 2 mailer (have it automatically mail out something like a postcard) day 3 etc etc etc*project management outside of the outreach sequences for what's next in the process ie schedule inspection, send the contract, etc etc*ability to have multiple users drive around and if you see a property you can tag an address and add it into a marketing sequence, and also track the streets you've hit so you're not wasting time driving by the same houses more than once *dialer (ability to parallel dial numerous numbers simultaneously to make cold calling more efficient - Ive used tools like orum and kixie in other industries, and when you receive a pickup, the other calls are dropped) *skip tracing/data provider *website landing page for converting online visitors to leads*electronic signature/docusign*secondary branded landing site on different URL for blasts for deal disposition to your buyer listWhat am I missing? 

After 3 years of ownership, I typically see my buyers achieve 9-10% cash on cash return with an annual appreciation rate of 9-11% a year in those areas. 

The buyer was seeking a conventional loan. 

Now thats all groovy but the market is not liking it.. parking sucks and no yards.. so a few builders I know that did these little developments are not selling well and ( of course that buyer is very interest rate sensitive) so I personally wont do it..

In todays environment with higher interest rates there are less buyers in the market than a few years ago so waiting several years until rates drop to a more palatable range could lead to much higher returns.

Just do your best to get all tenants to sign the letters if a buyer asks for them. 

I hear ya I would not want to have a spec build in SWF right now unless its a ultra premium where the buyers buy for different reasons.

I am a first home buyer.