Any articles, youtube videos, or books that you would recommend?

If you are just starting out, I'd recommend starting in single family.  

My cash is in a high yeild savings account only making about 4.5%. 

It is a 100 year old purpose built apartment building which was considered high end in the early 1900s, with butlers' quarters in the basement of the building, and each apartment boasting 1400 sq ft / 2 beds / 1.5 baths and maids' quarters in the back.  

Those might make good rentals...but also there can be extra costs...see if they are in PIDs/PUDs or MUDs that add significant cost to the monthly payment...maybe $100-$200 extra a month.Also $2500 sounds high on rent to me for 1800sqft....I would think more like around $2000/month, but haven't looked in that area lately.I do like Forney....one issue is I don't think there are good demand drivers there. 

Videos are neat but not sure about a 3 minute one costing $4k.My recommendation would be to start with the above to see how bookings go first and then you can consider adding video down the road.

That said, expect to deal with a fair amount of fluff leads.The two best strategies I’ve found are inbound methods: direct mail and Google Ads.Direct mail can be expensive, but it can also yield highly discounted properties.Google Ads, on the other hand, doesn’t require data extraction like calls, direct mail, or texting.

Very interested in Rentals and wholesaling. im very excited to join this site - and would love to talk and learn more from you , I'm always eager to learn and meet new people . while I've been trying to get into the real estate world for a few years now - it's been a little bit tough, especially knowing where to start and how to go about it .

Conducting tenant reference checks is crucial for ensuring you find high-quality tenants who respect your property and pay rent on time.

A lot of out of state investors reap the upside potential of the Nashville market (and protect themselves from some of the downside) by investing in the high-growth (yet moderately priced) secondary markets near Nashville (i.e.