I am here to find and BRRRR my first property then be dynamic about the next step seeing what options would be best from using the ARV money.

Know your key dates of everything, contingencies, options to such, and strategize for getting any amendments to extend if need be. 

STR is a better option for renting a room in your house than MTR.

What kind of loans are these - seem like pretty solid options regardless - conventional loans?

Typical is about $150/month.

Wow, there are a lot of options on this thread.

Look at the existing inventory in you're area, find an investor agent who has experience with house hacking, pick the best option currently on the market that fits your budget and make the offer. 

Research and plan using MLS data, property criteria, and financing options.

I typically do the following:1.

Partnering with experienced investors can provide valuable insights.5.Creative Financing:Explore creative financing options like seller financing or private lenders to secure better terms.6.Rent by the Bedroom:In high-demand areas, renting by the bedroom can boost your rental income significantly.7.Local Market Analysis:Stay updated on local market trends and network with other investors for insights and opportunities.Always analyze potential investments thoroughly and run detailed cash flow projections.