If you purchase online, find a retailer that has the delivery window at the point of purchase.

Their new online system is really confusing, and I have had to call customer support for help each time I needed to wire/ACH funds because I could never figure it out on my own (and their customer service chat box isn't set up yet). 

I don't care what anyone online says if you live there and have tenants at your home it will be a job. 

I’ve found success by networking at local meetups, connecting with real estate agents, and exploring online platforms to discover these opportunities.

A good tip is to reach out to contractors, visit local supply stores, and check out online resources for cost ranges.

When I did an online search for commercial multifamily lenders, most have a minimum lending requirement of $1M and I don't need that much. 

A lot of that is referral based or people find my site online, organically. 

Quickbooks online could work for what you need.  

I clicked on a few and the days on market are over 2 months.I would post on apartments.com and Facebook Marketplace.

I may be an outlier here but I hate FB marketplace.