There are some forms of income that do not require any receipt to use which are some of the above (full time job just offer letter or ownership of newly acquired rental property (lease agreement + security deposit/rent proof only).If you dont plan to go back to full doc then stay in the no income/state world and the premium for these products varies between 1-2.5% higher than full doc fannie/freddie/FHA/VA rates but pros and cons right?

But I would be missing items necessary for taxes, etc.

2) With no lease, you have no agreed upon rent as the new owner.

COSTS:  I would look at any-and-all things needed to run an STR including items that are often done by owners--for example, property management.  

. - Make sure you get a security deposit and perhaps do a surprise inspection of their current home.S8 requires an inspection (mostly health & safety) before approving a lease and then annually thereafter. - Not something most landlords taking care of their properties have to worry about.There are limits to clauses they allow in your lease.

What are the lease end dates since you aren't getting the rent up before the end of the leases?

We both have made compromises along the way.I think that’s completely right and one of the reasons you hear the horror stories about these things going sideways (there’s no established timeline for exit), it literally just goes until something breaks. figuring out the ownership structure, and thus the use/access, as well as the exit feels like the two biggest items to get extreme clarity around. 

Short-term rentals (STRs) in San Antonio offer both advantages and challenges, especially in light of recent regulations.Pros:Increased Income Potential: STRs often generate higher rental income compared to long-term leases, as they charge daily or weekly rates.

Highly agree with Nathan - Buildium is a Nightmare to use for STR, it is not appropriate at all and prone to a lot of errors due to the sheer number of manual items that need to be adjusted in there. 

We have good tenants in there entering year 2 of a 2 year lease.