They told me that I can ask to increase rent ( their website says up to 9.2%) after a year.

You can check out the NBOA website for one list of groups that are quite active. 

.- Search for Properties: Start your property search by browsing listings on real estate websites, working with a knowledgeable agent who understands the investment market in Huntsville, and exploring off-market deals through wholesalers and networking connections.- Analyze Deals Thoroughly: Once you identify potential properties, conduct thorough due diligence and financial analysis to ensure they meet your investment criteria.

Hey @Francisco LuceroI have not used Deal Machine but I have used a free website called True People Search.

The question I have is should I use my personal name in the letters or use a company name with logo and website?  

You should consult an attorney or CPA for your specific situation.ANONYMITY: When you create the LLC, your name is recorded on the documents and published on the Secretary of State's website for all to see.

Where are some places (apps, trusted websites, booklets, ect.)that I can find commercial and residential properties?

You can usually find this information (taxes) on your local auditor's website.

The website has some warnings, but the Sheriff is selling the properties, so they aren’t necessarily going to give me the straight dope.Not being able to see the inside is tricky.

Hi Suzanne-I would suggest checking out google, reading reviews, and looking at different websites to see the top few that you think will provide value.