I know this is a little bit different perspective than what your question was asking but this is just food for thought.

Either your tenants had some really bad mexican food or you have a clog in the sewer line. 

Personal safety and standard of living should be prioritized.  3% down on a 130K is 4K  down payment and 3% down on a 200K home is 6K, for only 2K you should get a better house to live in. 

If anyone in the surrounding area would like to grab a beer, coffee, or food(I'm a big-time foodie), I'm looking forward to networking, learning, and pursuing as much opportunity as I can!

Free food and free adult beverages. 50+ in attendance.

guessing the most of air is venting in crawl space from a leak or something, is it safety concern?

However, with recent events in my field and the uncertainties we have all faced with the recent pandemic, I came to discover that I want to create a safety net for myself and my family.

Baltimore cons: Population decline, unemployment higher than the national average, tenant friendly laws, very long eviction process, older homes, safety concerns in some neighborhood.

As most posters have said this gets settled quickly and Cardone will be back flashing his toys & talk on YouTube and trying to attract the young guns who for their part completely missed the bus on a good financial education and are now playing catch up on the wealth food chain hoping that uncle Grant is their ticket to them to Nirvana.

I took my inspection report and for a couple dollars had a VA put every item into categories of possible repairs / preventative maintenance such as water, electrical, safety, cosmetics.