Owner shouldn't care about your DTI.

But be careful with day trading.

I don't care if 99 of 100 homes in the area have K&T, I would NOT buy it and leave it with K&T anywhere.

This is one of the things that @Matthew Irish-Jones mentioned above - be careful about putting #3 on his list above #1 and #2.

If the software is not simplifying your life or making you more accurate, you shouldn't use it.Software does have extremely helpful features like online payments, marketing syndication (click a button, and your property is advertised on multiple sites), electronic document review/signing, maintenance tracking, and owner reports.

Listening carefully and asking open-ended questions like “What’s most important to you in this deal?”

(To avoid months of probate and thousands if not $10’s of thousands of dollars in costs.)Hawaii is considered a "TOD deed state," meaning that residents can utilize Transfer on Death (TOD) deeds to designate beneficiaries who will inherit their property upon their death, allowing for a potential bypass of probate court proceedings.If she is already in memory care center.

Budget carefully, prioritize high-ROI renovations, and adhere to strict timelines to maximize profitability.

You're learning about the eviction process, tenant screening (never "word of mouth" again), the power of a lease WHEN not IF a neutral third party needs to be involved, tenant/landlord laws, and managing tenants who don't care about your business the way you do. 

You're feeding 2 dogs with one biscuit by taking care of your living expenses and generating rental income at the same time, and by living in the house and keeping it to 4, you generally get exemptions on things that might bother you to live with (IE you can choose whomever you want as your tenants without running afoul of fair housing laws).