I have a template that I use that includes projected income and projected expenses and I run the calculation myself, but if you like ones that do it all for you in addition to what has been mentioned above AirDNA has one as well.

Feel free to DM me for the information.

I wouldn't touch anything outside the urban core. if your strategy is to buy existing and old I'd recommend not to. as a newer investor depending on your liquidity look at build to rent development. building investment properties below market value by 25% and refinancing out of it to do it again. the urban core has tax abatements as well that are 15 years right now you can apply for. that means that taxes will be around $600 to $800 per year. there's cash Flow but the existing inventory market dried up a few years ago in the urban core. local realtors are going to push you to the trash areas like hilltop, south linden, etc because it's the only place numbers work. columbus is great, but remember a tenant who pays $1800 a month is different than a tenant who pays $900 a month. let me know if I can help any other way! 

He contacted me, and I'm wondering how trustworthy he is as well.

Unless you are unknowledgable, my bet is you could make more from rent than sale, and still have the benefits of owning the original home while you go do something else.The 25K you have left in property will be netting you(gross) of $350 mo or 4200 per year.

We have been quite successful hosting Murder Mystery Weekends as well.

I am looking to purchase real estate for both investment purpose as well as to offset as much tax liability as possible. 

Quote from @Ricardo Marquez: Hi @Jennifer Stammberger this is Ricardo from yourserviceva, we are a real estate agency with non accent cold callers ready to start whenever you want, I'll text you our info on private also-Ricardo Marquez Hi Recardo, I am looking for a good cold calling company as well, to help call and negotiate RE property prices with prospective sellers.Looking forward to your response. 

I've been down here 18 years so I know south FL very well so I can definitely help you out in that! 

It is in good condition, nicely decorated, top notch bedding and well appointed kitchen with a large lanai and no pool.