The current incentive structure makes it very difficult for an assumable mortgage to actually be a tangible tool for buyers. 

Understanding where the market is can help you make better decisions.Use Helpful Tools:Real Estate Apps: Apps like Redfin and Realtor.com offer a lot of info on property values and market trends.Deal Analysis Tools: Consider tools Biggerpockets calculator, they offer a variety of calculators that are very easy to use! 

.), Designing and Furnishing (amenities, design, theme, linens, etc), and operating (Insurance, Property management or self-management, Tech & Tools, Cleaners & handy people, etc)All of these could be covered depending on who you work with that can cover each topic. 

I know you mentioned credit + rental history but can you share exactly all the steps you go through and which tools you use?

If you don't have a calculator/tool to do this there are a few out there to recommend.

BP has various tools to help you analyze your deals (rentals, flips, wholesale, etc). : https://www.biggerpockets.com/investment-calculators7.

I think AirDNA has a few more metrics, but I like the tool as a basic checker.

BP has various tools to help you analyze your deals (rentals, flips, wholesale, etc). : https://www.biggerpockets.com/investment-calculators7.

That is the issue that first must be resolved, although I am not sure if you are going to be able to correct a bad location if that is the root issue but there are certainly tools at your disposal to protect against liens. 

This past week I've invested some hours after my 9 to 5 (between putting the babies to bed and my own bedtime) into a tool that would help me understand the impact of refinancing, depreciating or selling my LTRs.